{"id":"CVE-2026-11963","state":"PUBLISHED","title":"User Registration & Membership < 5.2.2 - Subscriber+ Cross-User Role and Membership Tier Modification via IDOR","description":"The User Registration & 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.","publishedAt":"2026-07-13T06:00:01.343Z","updatedAt":"2026-07-13T15:53:39.115Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown User Registration & Membership"],"affected":[{"vendor":"Unknown","product":"User Registration & Membership","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.2.2","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/a34a916a-983e-48a5-8f10-99214ee3b613/"],"weaknesses":[],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/11xxx/CVE-2026-11963.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-11963","state":"PUBLISHED","datePublished":"2026-07-13T06:00:01.343Z","dateUpdated":"2026-07-13T15:53:39.115Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-06-11T08:11:19.820Z"},"containers":{"cna":{"title":"User Registration & Membership < 5.2.2 - Subscriber+ Cross-User Role and Membership Tier Modification via IDOR","descriptions":[{"lang":"en","value":"The User Registration & 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."}],"affected":[{"vendor":"Unknown","product":"User Registration & Membership","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.2.2","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/a34a916a-983e-48a5-8f10-99214ee3b613/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-07-13T06:00:01.343Z"},"credits":[{"lang":"en","value":"Revanth Hari Narayana Matte","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.1,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-13T15:53:21.705650Z","id":"CVE-2026-11963","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-13T15:53:39.115Z"}}]}}}