CVE-2025-66039
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductSangoma Freepbx
PublishedDec 9, 2025
First seenDec 9, 2025
Weakness typeCWE-287Improper authentication
How to fix
Update
- sangoma freepbx16.0.44, 17.0.23 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sangoma freepbx | v < 16.0.44, 17.0.1 ≤ v < 17.0.23 | 16.0.44, 17.0.23 |
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