CVE-2026-92798

01/תיאור (מקור, אנגלית)

The User Registration & Membership plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to, and including, 5.2.8 This is due to insufficient input sanitization in the 'referrer_url' branch of UR_Smart_Tags::process(), where the attacker-controlled HTTP_REFERER header is only passed through sanitize_text_field() — which does not strip WordPress shortcode delimiters — before being substituted into a Content Restriction message that is subsequently executed via apply_shortcodes()/do_shortcode(). This makes it possible for unauthenticated attackers to execute arbitrary registered shortcodes on any restricted page whose message uses the supported {{referrer_url}} smart tag.

02/קישורים6

• plugins.trac.wordpress.org/browser/user-registration/tags/5.2.‮…
• plugins.trac.wordpress.org/browser/user-registration/tags/5.2.‮…
• plugins.trac.wordpress.org/browser/user-registration/tags/5.2.‮…
• plugins.trac.wordpress.org/browser/user-registration/tags/5.2.‮…
• plugins.trac.wordpress.org/changeset/3741339/user-registration‮…
• www.wordfence.com/threat-intel/vulnerabilities/id/ec317df9-c7e‮…