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CVE-2026-73663FreePBX: Unauthenticated SQL injection in FreePBX missedcall via inbound Caller ID name leads to administrator takeover
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.
9.3 CRITICALEPSS 0.38%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.3 | CRITICAL | 4.0GitHub_M (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 9.8 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Details
- CVE ID
- CVE-2026-73663
- Status
- Analyzed
- Assigner (CNA)
- GitHub_M
- Published
- Aug 13, 2026
- Last modified
- 2026-10-09 19:31 UTC
- Weaknesses
- CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Products
As published by the CNA in the CVE record.
FreePBXmissedcall2 version ranges
- < 16.0.11
- >= 17.0.1, < 17.0.4