{"id":"CVE-2026-11963","aliases":["EUVD-2026-43284","GHSA-qxg2-gwhj-546g"],"status":"published","title":"User Registration \u0026 Membership \u003c 5.2.2 - Subscriber+ Cross-User Role and Membership Tier Modification via IDOR","description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.2 does not perform an authorization check on a membership-upgrade action and derives the user to modify from a caller-supplied identifier instead of the current user, allowing any authenticated user such as a subscriber to change another user's WordPress role and membership tier.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.0035,"percentile":0.28837,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2026-07-13T06:00:01Z","modified":"2026-07-13T18:31:48Z","products":[{"vendor":"unknown","product":"user registration \u0026 membership"}],"references":[{"url":"https://wpscan.com/vulnerability/a34a916a-983e-48a5-8f10-99214ee3b613/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-11963"},{"url":"https://wpscan.com/vulnerability/a34a916a-983e-48a5-8f10-99214ee3b613"},{"url":"https://github.com/advisories/GHSA-qxg2-gwhj-546g"}],"sources":{"cve":[{"id":"CVE-2026-11963","title":"User Registration \u0026 Membership \u003c 5.2.2 - Subscriber+ Cross-User Role and Membership Tier Modification via IDOR","description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.2 does not perform an authorization check on a membership-upgrade action and derives the user to modify from a caller-supplied identifier instead of the current user, allowing any authenticated user such as a subscriber to change another user's WordPress role and membership tier.","status":"published","published":"2026-07-13T06:00:01.343Z","modified":"2026-07-13T15:53:39.115Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:20:04.809935Z"}],"euvd":[{"id":"EUVD-2026-43284","description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.2 does not perform an authorization check on a membership-upgrade action and derives the user to modify from a caller-supplied identifier instead of the current user, allowing any authenticated user such as a subscriber to change another user's WordPress role and membership tier.","status":"published","published":"2026-07-13T06:00:01Z","modified":"2026-07-13T15:53:39Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T18:20:01.519776Z"}],"ghsa":[{"id":"GHSA-qxg2-gwhj-546g","title":"The User Registration \u0026 Membership  WordPress plugin before 5.2.2 does not perform an...","description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.2 does not perform an authorization check on a membership-upgrade action and derives the user to modify from a caller-supplied identifier instead of the current user, allowing any authenticated user such as a subscriber to change another user's WordPress role and membership tier.","status":"published","published":"2026-07-13T09:31:41Z","modified":"2026-07-13T18:31:48Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:09:25.900925Z"}],"nvd":[{"id":"CVE-2026-11963","description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.2 does not perform an authorization check on a membership-upgrade action and derives the user to modify from a caller-supplied identifier instead of the current user, allowing any authenticated user such as a subscriber to change another user's WordPress role and membership tier.","status":"published","published":"2026-07-13T07:16:27.307Z","modified":"2026-07-13T18:05:36.13Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"updated_at":"2026-11-02T14:12:28.771746Z"}]}}