{"id":"CVE-2026-15222","aliases":["EUVD-2026-102801","GHSA-4cx9-54r5-3429"],"status":"published","title":"User Registration \u0026 Membership \u003c= 5.2.8 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via display_name","description":"The The User Registration \u0026 Membership – Free \u0026 Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration \u0026 Login Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.2.8. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00179,"percentile":0.07546,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-94"],"published":"2026-10-16T06:41:08Z","modified":"2026-10-16T15:17:15Z","products":[{"vendor":"wpeverest","product":"user registration \u0026 membership – free \u0026 paid memberships, subscriptions, content restriction, user profile, custom user registration \u0026 login builder"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/f61873db-7365-41cb-a774-8f455a963d78?source=cve"},{"url":"https://plugins.trac.wordpress.org/changeset/3741339/user-registration/trunk/includes/class-ur-smart-tags.php"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15222"},{"url":"https://github.com/advisories/GHSA-4cx9-54r5-3429"}],"sources":{"cve":[{"id":"CVE-2026-15222","title":"User Registration \u0026 Membership \u003c= 5.2.8 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via display_name","description":"The The User Registration \u0026 Membership – Free \u0026 Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration \u0026 Login Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.2.8. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes.","status":"published","published":"2026-10-16T06:41:08.118Z","modified":"2026-10-16T15:09:37.979Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T13:47:51.033687Z"}],"euvd":[{"id":"EUVD-2026-102801","description":"The The User Registration \u0026 Membership – Free \u0026 Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration \u0026 Login Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.2.8. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes.","status":"published","published":"2026-10-16T06:41:08Z","modified":"2026-10-16T15:09:37Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:00:05.596619Z"}],"ghsa":[{"id":"GHSA-4cx9-54r5-3429","title":"The The User Registration \u0026 Membership – Free \u0026 Paid Memberships, Subscriptions, Content...","description":"The The User Registration \u0026 Membership – Free \u0026 Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration \u0026 Login Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.2.8. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes.","status":"published","published":"2026-10-16T09:30:28Z","modified":"2026-10-16T09:30:34Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T15:13:51.12467Z"}],"nvd":[{"id":"CVE-2026-15222","description":"The The User Registration \u0026 Membership – Free \u0026 Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration \u0026 Login Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.2.8. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes.","status":"published","published":"2026-10-16T07:17:12.12Z","modified":"2026-10-16T15:17:15.343Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:12:59.751798Z"}]}}