Skip to content
OpenAdvisories
Critical · 9.3 Public exploit CVE-2026-73663 EUVD-2026-58486

FreePBX: Unauthenticated SQL injection in FreePBX missedcall via inbound Caller ID name leads to administrator takeover

Published Aug 13, 2026 · Updated Aug 14, 2026 · Assigned by GitHub_M

Vendor: FreePBX Product: missedcall

Description

FreePBX is an open source IP PBX. From 16.0.0 until 16.0.11 and 17.0.4, the FreePBX missedcall module places the inbound Caller ID name from crafted SIP From headers into the missedcalllog INSERT in agi-bin/missedcallnotify.php without escaping or bound parameters. An unauthenticated caller can inject SQL when a monitored extension goes unanswered, corrupting the database and modifying FreePBX administrator accounts to obtain unauthorized remote access. This issue is fixed in versions 16.0.11 and 17.0.4.

Affected products

VendorProductAffectedFixed
FreePBX missedcall < 16.0.11, >= 17.0.1, < 17.0.4 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • fixedbyreboot/CVE-2026-73663-POC ★ 0 · Nov 10, 2026

    POC exploit for CVE-2026-73663 - unauthenticated SQL injection in the FreePBX missedcall module via a crafted SIP From Caller-ID name, allowing admin account modification. Vulnerable 17.0.3 vs patche…

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References