{"id":"CVE-2026-34384","aliases":["GHSA-ph84-r98x-2j22"],"url":"https://o3.security/vulnerability/CVE-2026-34384","summary":"Admidio: Missing CSRF Protection on Registration Approval Actions","details":"Admidio is an open-source user management solution. Prior to version 5.0.8, the create_user, assign_member, and assign_user action modes in modules/registration.php approve pending user registrations via GET request without validating a CSRF token. Unlike the delete_user mode in the same file (which correctly validates the token), these three approval actions read their parameters from $_GET and perform irreversible state changes without any protection. An attacker who has submitted a pending registration can extract their own user UUID from the registration confirmation email URL, then trick any user with the rol_approve_users right into visiting a crafted URL that automatically approves the registration. This bypasses the manual registration approval workflow entirely. This issue has been patched in version 5.0.8.","published":"2026-03-31T20:34:37.789Z","modified":"2026-08-07T11:50:57.916078572Z","cvss":{"score":4.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"admidio/admidio","fixedVersion":"5.0.8"}],"fix":{"url":"https://github.com/Admidio/admidio/commit/707171c188b3e8f36007fc3f2bccbfac896ed019","label":"Admidio/admidio@707171c"},"references":[{"type":"ADVISORY","url":"https://github.com/Admidio/admidio/security/advisories/GHSA-ph84-r98x-2j22"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34384.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34384"},{"type":"FIX","url":"https://github.com/Admidio/admidio/commit/707171c188b3e8f36007fc3f2bccbfac896ed019"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:50:57.916078572Z"}}