{"id":7408,"date":"2026-09-04T18:49:32","date_gmt":"2026-09-04T10:49:32","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-15826"},"modified":"2026-09-04T18:49:32","modified_gmt":"2026-09-04T10:49:32","slug":"cve-2026-15826","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-15826","title":{"rendered":"CVE-2026-15826 [CRITICAL] &#8211; The User Profile Builder plugin for WordPress is vulnerable to Authentication Bypass via T"},"content":{"rendered":"<p>The User Profile Builder plugin for WordPress is vulnerable to Authentication Bypass via Type Confusion in versions up to, and including, 3.16.4. This is due to the wppb_log_in_user() function calling absint() on the return value of wp_insert_user() before performing an is_wp_error() check \u2014 when a registration is submitted with a 61\u201370 character username, WordPress core rejects it with a WP_Error object, but absint() coerces that object to the integer 1 before the error check can short-circuit execution, causing the plugin to bind and return a transient-backed autologin nonce tied to user ID 1. This makes it possible for unauthenticated attackers to log in as the site&#8217;s Administrator account (user ID 1), resulting in full administrative takeover of the site.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The User Profile Builder plugin for WordPress is vulnerable to Authentication Bypass via Type Confusion in versions up to, and including, 3.16.4. This is due to the wppb_log_in_user() function calling<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7408","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7408","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}