{"id":"CVE-2026-32755","aliases":["GHSA-h8gr-qwr6-m9gx"],"url":"https://o3.security/vulnerability/CVE-2026-32755","summary":"Admidio is Missing CSRF Protection on Role Membership Date Changes","details":"Admidio is an open-source user management solution. In versions 5.0.6 and below, the save_membership action in modules/profile/profile_function.php saves changes to a member's role membership start and end dates but does not validate the CSRF token. The handler checks stop_membership and remove_former_membership against the CSRF token but omits save_membership from that check. Because membership UUIDs appear in the HTML source visible to authenticated users, an attacker can embed a crafted POST form on any external page and trick a role leader into submitting it, silently altering membership dates for any member of roles the victim leads. A role leader's session can be silently exploited via CSRF to manipulate any member's membership dates, terminating access by backdating, covertly extending unauthorized access, or revoking role-restricted features, all without confirmation, notification, or administrative approval. This issue has been fixed in version 5.0.7.","published":"2026-03-19T22:53:09.081Z","modified":"2026-08-07T11:48:53.206967329Z","cvss":{"score":5.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"admidio/admidio","fixedVersion":"5.0.7"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/Admidio/admidio/releases/tag/v5.0.7"},{"type":"ADVISORY","url":"https://github.com/Admidio/admidio/security/advisories/GHSA-h8gr-qwr6-m9gx"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32755.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32755"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:48:53.206967329Z"}}