CVE-2025-66039CRITICAL 9.8EPSS p85.5%
CVE-2025-66039CVE-2025-66039
Description
FreePBX Endpoint Manager is a module for managing telephony endpoints in FreePBX systems. Versions are vulnerable to authentication bypass when the authentication type is set to "webserver." When providing an Authorization header with an arbitrary value, a session is associated with the target user regardless of valid credentials. This issue is fixed in versions 16.0.44 and 17.0.23.
Scoring
| CVSS 3.1 | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.98% probability of exploitation · percentile 85.5% · 2026-06-19T12:03:05Z |
| Published | 2025-12-09 |
| Last modified | 2026-02-02 |
Underlying weaknesses· 1
References
- https://github.com/FreePBX/framework/commit/04224253156543cd9932b90458660b2f19fc0e35#diff-72f14a52840a61504a8e03cd195035b44e488aecd634b001bc6412a04bdc940bR20-R50
- https://github.com/FreePBX/security-reporting/security/advisories/GHSA-9jvh-mv6x-w698
- https://www.freepbx.org/watch-what-we-do-with-security-fixes-%f0%9f%91%80
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Improper Authenticationcwe-287 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.