Vulnerability 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.
Related Weaknesses (CWE)
References
- https://github.com/FreePBX/missedcall/commit/4ada1d6b280fc246e74babc8d52f4cd1509
- https://github.com/FreePBX/missedcall/commit/710acdf51968db507b3f9c47ce3db006846
- https://github.com/FreePBX/security-reporting/security/advisories/GHSA-g27h-xf3q
FAQ
What is CVE-2026-73663?
CVE-2026-73663 is a documented vulnerability. 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 a...
How severe is CVE-2026-73663?
CVSS scoring is not yet available for CVE-2026-73663. Check NVD for updates.
Is there a patch for CVE-2026-73663?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.