CVE-2025-66039 PoC — FreePBX Endpoint Manager Allows Unauthenticated Logins to Administrator Control Panel via Forged Basic Auth Header

Source

https://github.com/cyberleelawat/FreePBX-Multiple-CVEs-2025

Associated Vulnerability

Title: FreePBX Endpoint Manager Allows Unauthenticated Logins to Administrator Control Panel via Forged Basic Auth Header (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.

Description

This repository documents three security vulnerabilities discovered in FreePBX (CVE-2025-66039, CVE-2025-61678, CVE-2025-61675), including analysis, impact, and proof-of-concept details for security research and awareness purposes.

File Snapshot

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