{"id":"CVE-2026-34384","title":"Admidio is an open-source user management solution","summary":"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 …","severity":"medium","cvss":4.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N","cwe":["CWE-352"],"vendor":"admidio","product":"admidio","affected":["admidio < 5.0.8"],"patched":["admidio 5.0.8"],"published":"2026-03-31","updated":"2026-10-06","sourceUpdated":"2026-10-06T22:10:00.247","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-34384","references":[{"url":"https://github.com/Admidio/admidio/commit/707171c188b3e8f36007fc3f2bccbfac896ed019","label":"security-advisories@github.com"},{"url":"https://github.com/Admidio/admidio/security/advisories/GHSA-ph84-r98x-2j22","label":"security-advisories@github.com"},{"url":"https://github.com/Admidio/admidio/security/advisories/GHSA-ph84-r98x-2j22","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00194,"epssPercentile":0.08246,"ingestedAt":"2026-10-06T22:23:15.912Z","slug":"CVE-2026-34384","body":"## Overview\n\nAdmidio 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.\n\n## Affected\n\n- `admidio < 5.0.8`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `admidio 5.0.8`","depth":"sunlit","depthScore":25,"depthScoreParts":{"impact":24.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}