CVE-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.

CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-287 Improper Authentication

Affected Products

Vendor	Product	Versions
sangoma	freepbx	< 16.0.44
sangoma	freepbx	17.0.1 — 17.0.23

References

Advisories & Patches

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

Other References

https://github.com/FreePBX/framework/commit/04224253156543cd9932b90458660b2f19fc0e35#diff-72f14a52840a61504a8e03cd195035b44e488aecd634b001bc6412a04bdc940bR20-R50

Frequently Asked Questions

What is CVE-2025-66039? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-66039? +

CVE-2025-66039 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-66039? +

CVE-2025-66039 affects products from sangoma, specifically: freepbx. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-66039? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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