{"id":149,"date":"2026-01-19T00:00:00","date_gmt":"2026-01-18T23:00:00","guid":{"rendered":"https:\/\/helloblog.io\/el\/krisimi-klimakosi-pronomion-acf-extended-ti-na-elegxeis\/"},"modified":"2026-01-19T00:00:00","modified_gmt":"2026-01-18T23:00:00","slug":"krisimi-klimakosi-pronomion-acf-extended-ti-na-elegxeis","status":"publish","type":"post","link":"https:\/\/helloblog.io\/el\/krisimi-klimakosi-pronomion-acf-extended-ti-na-elegxeis\/","title":{"rendered":"\u039a\u03c1\u03af\u03c3\u03b9\u03bc\u03b7 \u03ba\u03bb\u03b9\u03bc\u03ac\u03ba\u03c9\u03c3\u03b7 \u03c0\u03c1\u03bf\u03bd\u03bf\u03bc\u03af\u03c9\u03bd \u03c3\u03c4\u03bf Advanced Custom Fields: Extended (ACF Extended): \u03c4\u03b9 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03c4\u03b9 \u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03be\u03b5\u03b9\u03c2 \u03ac\u03bc\u03b5\u03c3\u03b1"},"content":{"rendered":"\n<p>\u038c\u03c3\u03bf\u03b9 \u03b4\u03bf\u03c5\u03bb\u03b5\u03cd\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b5 ACF (Advanced Custom Fields) \u03c3\u03b5 custom builds \u03be\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03c0\u03cc\u03c3\u03bf \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03ad\u03bd\u03b1 \u00ab\u03b2\u03bf\u03bb\u03b9\u03ba\u03cc\u00bb form builder \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b3\u03af\u03bd\u03b5\u03b9 \u03bc\u03bf\u03bd\u03bf\u03c0\u03ac\u03c4\u03b9 \u03b3\u03b9\u03b1 \u03c3\u03bf\u03b2\u03b1\u03c1\u03cc incident. \u03a3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03b4\u03b7\u03bc\u03bf\u03c3\u03af\u03b5\u03c5\u03c3\u03b7 \u03c4\u03b7\u03c2 Wordfence, \u03b5\u03bd\u03c4\u03bf\u03c0\u03af\u03c3\u03c4\u03b7\u03ba\u03b5 \u03b5\u03c5\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 <em>Privilege Escalation<\/em> (\u03ba\u03bb\u03b9\u03bc\u03ac\u03ba\u03c9\u03c3\u03b7 \u03c0\u03c1\u03bf\u03bd\u03bf\u03bc\u03af\u03c9\u03bd) \u03c3\u03c4\u03bf <strong>Advanced Custom Fields: Extended<\/strong> (\u03b3\u03bd\u03c9\u03c3\u03c4\u03cc \u03c9\u03c2 <strong>ACF Extended<\/strong>, addon plugin \u03b3\u03b9\u03b1 \u03c4\u03bf ACF) \u03c0\u03bf\u03c5 \u03b1\u03c6\u03bf\u03c1\u03ac \u03b5\u03b3\u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03bc\u03b5 \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc 100.000 \u03b5\u03bd\u03b5\u03c1\u03b3\u03ac sites.<\/p>\n\n\n\n<p>\u03a4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 <strong>Critical<\/strong> (CVSS 9.8) \u03ba\u03b1\u03b9 \u03ad\u03c7\u03b5\u03b9 \u03bb\u03ac\u03b2\u03b5\u03b9 <strong>CVE-2025-14533<\/strong>. \u0397 \u03b4\u03b9\u03cc\u03c1\u03b8\u03c9\u03c3\u03b7 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03ae\u03b4\u03b7\u00b7 \u03c4\u03bf \u03b6\u03b7\u03c4\u03bf\u03cd\u03bc\u03b5\u03bd\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03b2\u03b5\u03b2\u03b1\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03b1\u03bd \u03c4\u03bf \u03b4\u03b9\u03ba\u03cc \u03c3\u03bf\u03c5 site \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b5 \u03b5\u03c0\u03b9\u03ba\u03af\u03bd\u03b4\u03c5\u03bd\u03bf \u03c3\u03b5\u03bd\u03ac\u03c1\u03b9\u03bf \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03ba\u03ac\u03bd\u03b5\u03b9\u03c2 update \u03ac\u03bc\u03b5\u03c3\u03b1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a4\u03b9 \u03b5\u03af\u03b4\u03bf\u03c5\u03c2 \u03b5\u03c5\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 (\u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1\u03c4\u03af \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03cc\u03c3\u03bf \u03c3\u03bf\u03b2\u03b1\u03c1\u03ae)<\/h2>\n\n\n\n<p>\u0397 \u03b5\u03c5\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c3\u03b5 <strong>unauthenticated attacker<\/strong> (\u03b4\u03b7\u03bb\u03b1\u03b4\u03ae \u03c7\u03c9\u03c1\u03af\u03c2 login) \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03b9 \u03ae \u03bd\u03b1 \u03b5\u03bd\u03b7\u03bc\u03b5\u03c1\u03ce\u03c3\u03b5\u03b9 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03bc\u03b5 \u03b1\u03c5\u03be\u03b7\u03bc\u03ad\u03bd\u03b1 \u03b4\u03b9\u03ba\u03b1\u03b9\u03ce\u03bc\u03b1\u03c4\u03b1, \u03ad\u03c9\u03c2 \u03ba\u03b1\u03b9 <strong>administrator<\/strong>, \u03b5\u03c6\u03cc\u03c3\u03bf\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03b5\u03c1\u03ac\u03c3\u03b5\u03b9 \u03c4\u03b9\u03bc\u03ae \u03b3\u03b9\u03b1 \u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf <code>role<\/code> \u03bc\u03ad\u03c3\u03b1 \u03b1\u03c0\u03cc \u03c6\u03cc\u03c1\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03bb\u03ae\u03b3\u03b5\u03b9 \u03c3\u03b5 action \u03c4\u03cd\u03c0\u03bf\u03c5 \u201cinsert user\u201d. \u0391\u03c5\u03c4\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03bb\u03b1\u03c3\u03b9\u03ba\u03cc <em>Privilege Escalation<\/em>: \u03b1\u03c0\u03cc \u00ab\u03ba\u03b1\u03bd\u03ad\u03bd\u03b1\u03c2 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7\u03c2\u00bb \u03c3\u03b5 \u00abadmin\u00bb \u03c3\u03b5 \u03ad\u03bd\u03b1 request.<\/p>\n\n\n\n<p>\u0391\u03c0\u03cc \u03b5\u03ba\u03b5\u03af \u03ba\u03b1\u03b9 \u03c0\u03ad\u03c1\u03b1, \u03b7 \u03c0\u03bb\u03ae\u03c1\u03b7\u03c2 \u03ba\u03b1\u03c4\u03ac\u03bb\u03b7\u03c8\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b8\u03ad\u03bc\u03b1 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c5: admin \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 plugin\/theme, upload \u03ba\u03b1\u03ba\u03cc\u03b2\u03bf\u03c5\u03bb\u03c9\u03bd zip, \u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2 \u03c3\u03b5 templates, redirects, spam injections \u03ba.\u03bb\u03c0.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03bf\u03b9\u03b5\u03c2 \u03b5\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03c0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 patched<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>\u0395\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9: <strong>Advanced Custom Fields: Extended <= 0.9.2.1<\/strong><\/li>\n\n\n<li>\u0394\u03b9\u03bf\u03c1\u03b8\u03c9\u03bc\u03ad\u03bd\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7: <strong>0.9.2.2<\/strong><\/li>\n\n\n<li>CVE: <strong>CVE-2025-14533<\/strong><\/li>\n\n\n<li>Severity: <strong>9.8 (Critical)<\/strong><\/li>\n\n<\/ul>\n\n\n\n<div class=\"wp-block-group callout callout-warning is-style-warning is-layout-flow wp-block-group-is-layout-flow\" style=\"border-width:1px;border-radius:8px;padding-top:1rem;padding-right:1.5rem;padding-bottom:1rem;padding-left:1.5rem\">\n\n<h4 class=\"wp-block-heading callout-title\">\u0386\u03bc\u03b5\u03c3\u03b7 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1<\/h4>\n\n\n<p>\u0391\u03bd \u03ad\u03c7\u03b5\u03b9\u03c2 ACF Extended \u03b5\u03b3\u03ba\u03b1\u03c4\u03b5\u03c3\u03c4\u03b7\u03bc\u03ad\u03bd\u03bf, \u03ba\u03ac\u03bd\u03b5 update \u03c3\u03c4\u03b7\u03bd <strong>0.9.2.2<\/strong> \u03c4\u03bf \u03c3\u03c5\u03bd\u03c4\u03bf\u03bc\u03cc\u03c4\u03b5\u03c1\u03bf. \u0397 \u03b5\u03c5\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 critical, \u03b1\u03bb\u03bb\u03ac \u03b4\u03b5\u03bd \u00ab\u03c0\u03b9\u03ac\u03bd\u03b5\u03b9\u00bb \u03cc\u03bb\u03b1 \u03c4\u03b1 setups \u03bc\u03b5 \u03c4\u03bf\u03bd \u03af\u03b4\u03b9\u03bf \u03c4\u03c1\u03cc\u03c0\u03bf (\u03b4\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03cb\u03c0\u03bf\u03b8\u03ad\u03c3\u03b5\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9).<\/p>\n\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03cc\u03c4\u03b5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b3\u03af\u03bd\u03b5\u03b9 exploit: \u03c4\u03bf \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03bf \u03c0\u03c1\u03bf\u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bc\u03b5\u03bd\u03bf<\/h2>\n\n\n\n<p>\u03a4\u03bf \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03bf \u03b5\u03b4\u03ce \u03b5\u03af\u03bd\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03b4\u03b5\u03bd \u03bc\u03b9\u03bb\u03ac\u03bc\u03b5 \u03b3\u03b9\u03b1 \u00ab\u03cc\u03bb\u03b1 \u03c4\u03b1 sites \u03c0\u03bf\u03c5 \u03ad\u03c7\u03bf\u03c5\u03bd \u03b1\u03c0\u03bb\u03ce\u03c2 \u03b5\u03bd\u03b5\u03c1\u03b3\u03cc \u03c4\u03bf plugin\u00bb. \u0397 Wordfence \u03c3\u03b7\u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03c4\u03bf exploit \u03b3\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 <strong>\u03bc\u03cc\u03bd\u03bf<\/strong> \u03b1\u03bd \u03c3\u03c4\u03bf site \u03ad\u03c7\u03b5\u03b9 \u03c3\u03c4\u03b7\u03b8\u03b5\u03af \u03c6\u03cc\u03c1\u03bc\u03b1 (\u03bc\u03ad\u03c3\u03c9 ACF Extended) \u03c0\u03bf\u03c5 \u03b5\u03ba\u03c4\u03b5\u03bb\u03b5\u03af action <strong>Create user<\/strong> \u03ae\/\u03ba\u03b1\u03b9 <strong>Update user<\/strong> \u03ba\u03b1\u03b9 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 mapping \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03c0\u03bf\u03c5 \u03c3\u03c7\u03b5\u03c4\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c1\u03cc\u03bb\u03bf \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7.<\/p>\n\n\n\n<p>\u039c\u03b5 \u03b1\u03c0\u03bb\u03ac \u03bb\u03cc\u03b3\u03b9\u03b1: \u03b1\u03bd \u03ad\u03c7\u03b5\u03b9\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b1 forms \u03c4\u03bf\u03c5 ACF Extended \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c6\u03c4\u03b9\u03ac\u03be\u03b5\u03b9\u03c2 registration\/insert-user flows \u03ba\u03b1\u03b9 \u03ad\u03c7\u03b5\u03b9\u03c2 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03bb\u03ac\u03b2\u03b5\u03b9 \u03c0\u03b5\u03b4\u03af\u03bf \u03c1\u03cc\u03bb\u03bf\u03c5 (\u03ae \u03ad\u03c7\u03b5\u03b9\u03c2 \u03ba\u03ac\u03bd\u03b5\u03b9 mapping <code>role<\/code> \u03c3\u03b5 custom field), \u03c4\u03cc\u03c4\u03b5 \u03c4\u03bf risk \u03b1\u03bd\u03b5\u03b2\u03b1\u03af\u03bd\u03b5\u03b9 \u03b1\u03c0\u03cc\u03c4\u03bf\u03bc\u03b1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a4\u03b9 \u03c0\u03ae\u03b3\u03b5 \u03c3\u03c4\u03c1\u03b1\u03b2\u03ac \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ac (\u03c3\u03b5 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf WordPress API)<\/h2>\n\n\n\n<p>\u0397 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b7 \u03c1\u03bf\u03ae \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03c0\u03b5\u03c1\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf <code>insert_user()<\/code> (\u03c3\u03b5 \u03ba\u03bb\u03ac\u03c3\u03b7 <code>acfe_module_form_action_user<\/code>) \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03b1\u03bb\u03ae\u03b3\u03b5\u03b9 \u03c3\u03b5 <code>wp_insert_user($args)<\/code> \u2014 \u03c4\u03bf core API \u03c4\u03bf\u03c5 WordPress \u03b3\u03b9\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\/\u03b5\u03bd\u03b7\u03bc\u03ad\u03c1\u03c9\u03c3\u03b7 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7.<\/p>\n\n\n\n<p>\u03a4\u03bf \u03ba\u03b5\u03bd\u03cc, \u03cc\u03c0\u03c9\u03c2 \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03ac\u03c6\u03b5\u03c4\u03b1\u03b9, \u03b5\u03af\u03bd\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03b4\u03b5\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03cc\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2\/allowlist \u03c3\u03c4\u03bf\u03c5\u03c2 \u03c1\u03cc\u03bb\u03bf\u03c5\u03c2 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b7\u03bb\u03c9\u03b8\u03bf\u03cd\u03bd \u03cc\u03c4\u03b1\u03bd \u03b7 \u03c6\u03cc\u03c1\u03bc\u03b1 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c3\u03c4\u03b1\u03bb\u03b5\u03af \u03c4\u03b9\u03bc\u03ae \u03b3\u03b9\u03b1 <code>role<\/code>. \u03a0\u03b1\u03c1\u03cc\u03c4\u03b9 \u03c3\u03c4\u03b7\u03bd \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac \u03c4\u03bf\u03c5 field group \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03c1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c4\u03cd\u03c0\u03bf\u03c5 \u201cAllow User Role\u201d, \u03c3\u03c4\u03b7\u03bd \u03b5\u03c5\u03ac\u03bb\u03c9\u03c4\u03b7 \u03b5\u03ba\u03b4\u03bf\u03c7\u03ae \u03b7 \u03c6\u03cc\u03c1\u03bc\u03b1 \u03b4\u03b5\u03bd \u03b5\u03c0\u03b9\u03b2\u03ac\u03bb\u03bb\u03b5\u03b9 \u03b1\u03c5\u03c4\u03cc\u03bd \u03c4\u03bf\u03bd \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c3\u03c4\u03bf submit \u03ba\u03b1\u03b9 \u03ad\u03c4\u03c3\u03b9 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03b5\u03c1\u03ac\u03c3\u03b5\u03b9 \u03c4\u03b9\u03bc\u03ae \u03cc\u03c0\u03c9\u03c2 <code>administrator<\/code>.<\/p>\n\n\n\n<div class=\"wp-block-group callout callout-info is-style-info is-layout-flow wp-block-group-is-layout-flow\" style=\"border-width:1px;border-radius:8px;padding-top:1rem;padding-right:1.5rem;padding-bottom:1rem;padding-left:1.5rem\">\n\n<h4 class=\"wp-block-heading callout-title\">\u0393\u03b9\u03b1 developers<\/h4>\n\n\n<p>\u038c\u03c4\u03b1\u03bd \u03c7\u03c4\u03af\u03b6\u03b5\u03b9\u03c2 public forms \u03c0\u03bf\u03c5 \u03b3\u03c1\u03ac\u03c6\u03bf\u03c5\u03bd \u03c3\u03b5 user objects, \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03ad \u03c4\u03b1 \u03c3\u03b1\u03bd authentication boundary. \u03a0\u03ac\u03bd\u03c4\u03b1 allowlist \u03c3\u03b5 <code>role<\/code>\/capabilities \u03ba\u03b1\u03b9 \u03c0\u03bf\u03c4\u03ad \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03bf\u03c3\u03cd\u03bd\u03b7 \u03c3\u03c4\u03b1 client-side constraints \u03ae \u03c3\u03c4\u03b9\u03c2 \u03c1\u03c5\u03b8\u03bc\u03af\u03c3\u03b5\u03b9\u03c2 UI \u03c4\u03bf\u03c5 field.<\/p>\n\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc\u03c2 \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf\u03c2: \u03c0\u03ce\u03c2 \u03bd\u03b1 \u03b4\u03b5\u03b9\u03c2 \u03b1\u03bd \u03b5\u03ba\u03c4\u03af\u03b8\u03b5\u03c3\u03b1\u03b9<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n\n<li>\u0388\u03bb\u03b5\u03b3\u03be\u03b5 \u03b1\u03bd \u03c4\u03bf plugin <strong>Advanced Custom Fields: Extended<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03b3\u03ba\u03b1\u03c4\u03b5\u03c3\u03c4\u03b7\u03bc\u03ad\u03bd\u03bf \u03ba\u03b1\u03b9 \u03c3\u03b5 \u03c0\u03bf\u03b9\u03b1 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7 (Plugins \u2192 Installed Plugins).<\/li>\n\n\n<li>\u0391\u03bd \u03b5\u03af\u03c3\u03b1\u03b9 \u03c3\u03b5 <strong>0.9.2.1 \u03ae \u03c0\u03b1\u03bb\u03b1\u03b9\u03cc\u03c4\u03b5\u03c1\u03b1<\/strong>, \u03c0\u03c1\u03bf\u03c7\u03ce\u03c1\u03b1 \u03c3\u03b5 update.<\/li>\n\n\n<li>\u0391\u03bd\u03b1\u03b6\u03ae\u03c4\u03b7\u03c3\u03b5 \u03c3\u03c4\u03b1 ACF Extended forms \u03b1\u03bd \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 action \u03c4\u03cd\u03c0\u03bf\u03c5 <strong>Create user<\/strong> \u03ae <strong>Update user<\/strong>.<\/li>\n\n\n<li>\u0388\u03bb\u03b5\u03b3\u03be\u03b5 \u03b1\u03bd \u03c3\u03c4\u03bf form \u03ad\u03c7\u03b5\u03b9 \u03b3\u03af\u03bd\u03b5\u03b9 mapping \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03c0\u03bf\u03c5 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af \u03c3\u03b5 <strong>role<\/strong> (\u03ae \u03b1\u03bd \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 field \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c1\u03cc\u03bb\u03bf\u03c5).<\/li>\n\n\n<li>\u0391\u03bd \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03c4\u03ad\u03c4\u03bf\u03b9\u03bf flow \u03ba\u03b1\u03b9 \u03c4\u03bf form \u03b5\u03af\u03bd\u03b1\u03b9 public (\u03c0.\u03c7. \u03c3\u03b5 registration page), \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03ad \u03c4\u03bf \u03c9\u03c2 \u03b5\u03c0\u03b5\u03af\u03b3\u03bf\u03bd \u03c0\u03b5\u03c1\u03b9\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03cc: update + \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf\u03c2 logs\/\u03c7\u03c1\u03b7\u03c3\u03c4\u03ce\u03bd.<\/li>\n\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Mitigation\/\u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1: updates \u03ba\u03b1\u03b9 firewall rules<\/h2>\n\n\n\n<p>\u0397 Wordfence \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b4\u03b9\u03ad\u03b8\u03b5\u03c3\u03b5 \u03ba\u03b1\u03bd\u03cc\u03bd\u03b1 \u03c3\u03c4\u03bf firewall \u03c4\u03b7\u03c2 (WAF rule) \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03c0\u03b5\u03bb\u03ac\u03c4\u03b5\u03c2 \u03c4\u03c9\u03bd Wordfence Premium\/Care\/Response \u03c3\u03c4\u03b9\u03c2 <strong>11 \u0394\u03b5\u03ba\u03b5\u03bc\u03b2\u03c1\u03af\u03bf\u03c5 2025<\/strong>, \u03b5\u03bd\u03ce \u03bf\u03b9 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b5\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03c9\u03c1\u03b5\u03ac\u03bd \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7\u03c2 \u03c0\u03ae\u03c1\u03b1\u03bd \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03b7 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1 <strong>30 \u03b7\u03bc\u03ad\u03c1\u03b5\u03c2 \u03b1\u03c1\u03b3\u03cc\u03c4\u03b5\u03c1\u03b1 (10 \u0399\u03b1\u03bd\u03bf\u03c5\u03b1\u03c1\u03af\u03bf\u03c5 2026)<\/strong>.<\/p>\n\n\n\n<p>\u0391\u03c5\u03c4\u03cc \u03b2\u03bf\u03b7\u03b8\u03ac \u03c9\u03c2 \u00ab\u03b4\u03af\u03c7\u03c4\u03c5 \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2\u00bb, \u03b1\u03bb\u03bb\u03ac \u03b4\u03b5\u03bd \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ac \u03c4\u03bf update \u03c4\u03bf\u03c5 plugin. \u03a4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc remediation \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b1\u03bd\u03b1\u03b2\u03ac\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c3\u03c4\u03b7 patched \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a7\u03c1\u03bf\u03bd\u03bf\u03b3\u03c1\u03b1\u03bc\u03bc\u03ae \u03b3\u03bd\u03c9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 (disclosure)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>10 \u0394\u03b5\u03ba 2025: \u03a5\u03c0\u03bf\u03b2\u03bf\u03bb\u03ae \u03c4\u03b7\u03c2 \u03b5\u03c5\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1\u03c2 \u03bc\u03ad\u03c3\u03c9 Wordfence Bug Bounty Program<\/li>\n\n\n<li>11 \u0394\u03b5\u03ba 2025: \u0395\u03c0\u03b9\u03b2\u03b5\u03b2\u03b1\u03af\u03c9\u03c3\u03b7\/validation \u03ba\u03b1\u03b9 WAF rule \u03b3\u03b9\u03b1 Premium\/Care\/Response + \u03b5\u03bd\u03b7\u03bc\u03ad\u03c1\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 vendor \u03bc\u03ad\u03c3\u03c9 Vulnerability Management Portal<\/li>\n\n\n<li>14 \u0394\u03b5\u03ba 2025: \u039a\u03c5\u03ba\u03bb\u03bf\u03c6\u03bf\u03c1\u03af\u03b1 \u03b4\u03b9\u03bf\u03c1\u03b8\u03c9\u03bc\u03ad\u03bd\u03b7\u03c2 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7\u03c2 <strong>0.9.2.2<\/strong><\/li>\n\n\n<li>10 \u0399\u03b1\u03bd 2026: WAF rule \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1 Wordfence Free<\/li>\n\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a4\u03b9 \u03bd\u03b1 \u03ba\u03c1\u03b1\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n\n<li>\u03a4\u03bf CVE \u03b1\u03c6\u03bf\u03c1\u03ac <strong>ACF Extended <= 0.9.2.1<\/strong> \u03ba\u03b1\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 <strong>Critical (9.8)<\/strong>.<\/li>\n\n\n<li>\u03a4\u03bf exploit \u03b5\u03af\u03bd\u03b1\u03b9 <strong>unauthenticated<\/strong>, \u03b1\u03bb\u03bb\u03ac \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b7 \u03c1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c6\u03cc\u03c1\u03bc\u03b1\u03c2: action create\/update user \u03bc\u03b5 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b1\u03c3\u03c4\u03b5\u03af <code>role<\/code>.<\/li>\n\n\n<li>\u039a\u03ac\u03bd\u03b5 <strong>update \u03c3\u03c4\u03b7\u03bd 0.9.2.2<\/strong> \u03ba\u03b1\u03b9 \u03ad\u03bb\u03b5\u03b3\u03be\u03b5 \u03c4\u03b1 forms \u03c3\u03bf\u03c5 \u03b3\u03b9\u03b1 \u03c0\u03b5\u03b4\u03af\u03b1 \u03c1\u03cc\u03bb\u03bf\u03c5\/mapping.<\/li>\n\n\n<li>\u0391\u03bd \u03ad\u03c7\u03b5\u03b9\u03c2 public registration flows, \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03ad \u03c4\u03b1 \u03c9\u03c2 \u03c5\u03c8\u03b7\u03bb\u03bf\u03cd \u03c1\u03af\u03c3\u03ba\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03b5\u03c0\u03af\u03b8\u03b5\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c6\u03ac\u03c1\u03bc\u03bf\u03c3\u03b5 \u03b1\u03c5\u03c3\u03c4\u03b7\u03c1\u03ae allowlist \u03c3\u03c4\u03b7 \u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03c4\u03c9\u03bd \u03c1\u03cc\u03bb\u03c9\u03bd.<\/li>\n\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1600\" src=\"https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-1-scaled-1.png\" alt=\"\u03a1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03c1\u03cc\u03bb\u03bf\u03c5 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03c3\u03c4\u03bf ACF Extended \u03bc\u03b5 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd (Allow User Role)\" class=\"wp-image-147\" srcset=\"https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-1-scaled-1.png 2560w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-1-scaled-1-300x188.png 300w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-1-scaled-1-1024x640.png 1024w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-1-scaled-1-768x480.png 768w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-1-scaled-1-1536x960.png 1536w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-1-scaled-1-2048x1280.png 2048w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-1-scaled-1-400x250.png 400w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption class=\"wp-element-caption\">\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03cc\u03c0\u03bf\u03c5 \u03c4\u03bf field group \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c0\u03b5\u03b4\u03af\u03bf \u03c1\u03cc\u03bb\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd. \u2014 <em>Forr\u00e1s: Wordfence.com<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1599\" src=\"https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-2-scaled-1.png\" alt=\"\u03a6\u03cc\u03c1\u03bc\u03b1 \u03c3\u03c4\u03bf ACF Extended \u03bc\u03b5 action Create user \u03ba\u03b1\u03b9 mapping \u03c0\u03b5\u03b4\u03af\u03c9\u03bd\" class=\"wp-image-148\" srcset=\"https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-2-scaled-1.png 2560w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-2-scaled-1-300x187.png 300w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-2-scaled-1-1024x640.png 1024w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-2-scaled-1-768x480.png 768w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-2-scaled-1-1536x959.png 1536w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-2-scaled-1-2048x1279.png 2048w, https:\/\/helloblog.io\/app\/uploads\/sites\/12\/2026\/01\/acfe-2-scaled-1-400x250.png 400w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption class=\"wp-element-caption\">\u03a4\u03bf \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03bf \u03c3\u03b5\u03bd\u03ac\u03c1\u03b9\u03bf \u03b1\u03c6\u03bf\u03c1\u03ac forms \u03c0\u03bf\u03c5 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03bd\/\u03b5\u03bd\u03b7\u03bc\u03b5\u03c1\u03ce\u03bd\u03bf\u03c5\u03bd \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03ba\u03b1\u03b9 \u03ba\u03ac\u03bd\u03bf\u03c5\u03bd mapping \u03c0\u03b5\u03b4\u03af\u03c9\u03bd (\u03c0.\u03c7. role). \u2014 <em>Forr\u00e1s: Wordfence.com<\/em><\/figcaption><\/figure>\n\n\n<div class=\"references-section\">\n                <h2>\u0391\u03bd\u03b1\u03c6\u03bf\u03c1\u03ad\u03c2 \/ \u03a0\u03b7\u03b3\u03ad\u03c2<\/h2>\n                <ul class=\"references-list\"><li><a href=\"https:\/\/www.wordfence.com\/blog\/2026\/01\/100000-wordpress-sites-affected-by-privilege-escalation-vulnerability-in-advanced-custom-fields-extended-wordpress-plugin\/\" target=\"_blank\" rel=\"noopener noreferrer\">100,000 WordPress Sites Affected by Privilege Escalation Vulnerability in Advanced Custom Fields: Extended WordPress Plugin<\/a><\/li><li><a href=\"https:\/\/www.wordfence.com\/threat-intel\/vulnerabilities\/wordpress-plugins\/acf-extended\/advanced-custom-fields-extended-0921-unauthenticated-privilege-escalation-via-insert-user-form-action\" target=\"_blank\" rel=\"noopener noreferrer\">Advanced Custom Fields: Extended &lt;= 0.9.2.1 &#8212; Unauthenticated Privilege Escalation via Insert User Form Action<\/a><\/li><li><a href=\"https:\/\/www.cve.org\/CVERecord?id=CVE-2025-14533\" target=\"_blank\" rel=\"noopener noreferrer\">CVE-2025-14533<\/a><\/li><li><a href=\"https:\/\/wordpress.org\/plugins\/acf-extended\/\" target=\"_blank\" rel=\"noopener noreferrer\">Advanced Custom Fields: Extended (WordPress.org plugin page)<\/a><\/li><\/ul>\n            <\/div>","protected":false},"excerpt":{"rendered":"<p>\u0388\u03bd\u03b1 critical bug \u03c3\u03c4\u03bf Advanced Custom Fields: Extended \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c8\u03b5\u03b9 \u03c3\u03b5 \u03bc\u03b7 \u03b1\u03c5\u03b8\u03b5\u03bd\u03c4\u03b9\u03ba\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03bf \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03ba\u03c4\u03ae\u03c3\u03b5\u03b9 \u03c1\u03cc\u03bb\u03bf administrator, \u03c5\u03c0\u03cc \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03c6\u03cc\u03c1\u03bc\u03b1\u03c2. \u0391\u03bd \u03c4\u03bf \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c2 \u03b3\u03b9\u03b1 registration\/\u201cCreate user\u201d actions, \u03b7 \u03b1\u03bd\u03b1\u03b2\u03ac\u03b8\u03bc\u03b9\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03c0\u03b5\u03af\u03b3\u03bf\u03c5\u03c3\u03b1.<\/p>\n","protected":false},"author":68,"featured_media":146,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[57],"tags":[80,81,11,15,10],"class_list":["post-149","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-57","tag-acf-extended","tag-cve","tag-security","tag-wordfence","tag-wordpress"],"_links":{"self":[{"href":"https:\/\/helloblog.io\/el\/wp-json\/wp\/v2\/posts\/149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/helloblog.io\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/helloblog.io\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/helloblog.io\/el\/wp-json\/wp\/v2\/users\/68"}],"replies":[{"embeddable":true,"href":"https:\/\/helloblog.io\/el\/wp-json\/wp\/v2\/comments?post=149"}],"version-history":[{"count":0,"href":"https:\/\/helloblog.io\/el\/wp-json\/wp\/v2\/posts\/149\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/helloblog.io\/el\/wp-json\/wp\/v2\/media\/146"}],"wp:attachment":[{"href":"https:\/\/helloblog.io\/el\/wp-json\/wp\/v2\/media?parent=149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/helloblog.io\/el\/wp-json\/wp\/v2\/categories?post=149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/helloblog.io\/el\/wp-json\/wp\/v2\/tags?post=149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}