Missing Authentication for Critical Function in Admidio - #VU127173
Published: April 23, 2026
Vulnerability identifier: #VU127173
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Admidio
Affected software:
Admidio
Admidio
Detailed vulnerability description
The vulnerability allows a remote attacker to prevent compromised tokens from being revoked.
The vulnerability exists due to improper access control in the OIDC token revocation endpoint when handling revocation requests. A remote attacker can send a revocation request for a token to prevent compromised tokens from being revoked.
The /oidc/revoke endpoint returns {"revoked": true} without actually revoking the token in the database, so stolen tokens remain usable until expiry.
Remediation
Install security update from vendor's website.