GHSA-4f43-5hgr-4m7rHighCVSS 8.3
GoatCounter through 2.7.0 contains a mass assignment privilege escalation vulnerability in the...
🔗 CVE IDs covered (1)
📋 Description
GoatCounter through 2.7.0 contains a mass assignment privilege escalation vulnerability in the userPrefSave handler that allows logged-in users to modify protected account fields via form-encoded requests. Attackers with read-only access can POST user.access[all]=* and user.email_verified=true to /user/pref, bypassing readonly tags to gain superuser or admin access.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-108740
- https://github.com/arp242/goatcounter
- https://github.com/arp242/goatcounter/blob/7e91d8a9bdbb0dd48496e498c5680f8f3477a1b4/handlers/settings_user.go#L33-L99
- https://github.com/arp242/goatcounter/blob/7e91d8a9bdbb0dd48496e498c5680f8f3477a1b4/user.go#L191-L218
- https://hackmd.io/@haind03/goatcounter-user-pref-access-mass-assignment-20261011
- https://www.vulncheck.com/advisories/goatcounter-through-2.7.0-privilege-escalation-via-user-pref-mass-assignment
- https://github.com/advisories/GHSA-4f43-5hgr-4m7r