Description
FreePBX is an open source IP PBX. Prior to 17.0.8, the FreePBX api module-s OAuth2 implementation does not sufficiently validate client credentials during token issuance. Knowledge of a valid client_id is required. The validateClient() method in ClientRepository.php unconditionally returns true, allowing any party with knowledge of a valid client_id to obtain OAuth2 access tokens without providing the correct client_secret. This vulnerability is fixed in 17.0.8.
CVSS 8.1EPSS 0.201%Risk 0.82
View source- Published
- 2026-05-29 14:16:27
- Affected versions
- <17.0.8
- Type
- Core software
- Last modified
- 2026-07-21 12:10:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N