CVE-2026-73663: CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in FreePBX missedcall
FreePBX missedcall module versions from 16.0.0 up to but not including 16.0.11 and from 17.0.0 up to but not including 17.0.4 contain an SQL injection vulnerability. The vulnerability arises because inbound Caller ID names from crafted SIP From headers are inserted into the missedcalllog database without proper escaping or use of bound parameters. This allows an unauthenticated attacker to inject SQL commands when a monitored extension goes unanswered, potentially corrupting the database and modifying administrator accounts to gain unauthorized remote access. The issue is fixed in versions 16.0.11 and 17.0.4.
AI Analysis
Technical Summary
CVE-2026-73663 is an SQL injection vulnerability in the FreePBX missedcall module. Specifically, from versions 16.0.0 until 16.0.11 and 17.0.0 until 17.0.4, the module inserts inbound Caller ID names from SIP From headers directly into the missedcalllog database via agi-bin/missedcallnotify.php without escaping or using parameterized queries. This allows an unauthenticated attacker to execute arbitrary SQL commands when a monitored extension does not answer a call, which can corrupt the database and modify administrator accounts, leading to unauthorized remote access. The vulnerability has a CVSS 4.0 score of 9.3 (critical). The issue is resolved in versions 16.0.11 and 17.0.4.
Potential Impact
An unauthenticated attacker can exploit this SQL injection vulnerability to corrupt the FreePBX database and modify administrator accounts, potentially gaining unauthorized remote access to the system. This compromises the integrity and confidentiality of the affected FreePBX installation.
Mitigation Recommendations
This vulnerability is fixed in FreePBX missedcall module versions 16.0.11 and 17.0.4. Users should upgrade to at least these versions to remediate the issue. No other mitigation or temporary workaround is indicated.
CVE-2026-73663: CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in FreePBX missedcall
Description
FreePBX missedcall module versions from 16.0.0 up to but not including 16.0.11 and from 17.0.0 up to but not including 17.0.4 contain an SQL injection vulnerability. The vulnerability arises because inbound Caller ID names from crafted SIP From headers are inserted into the missedcalllog database without proper escaping or use of bound parameters. This allows an unauthenticated attacker to inject SQL commands when a monitored extension goes unanswered, potentially corrupting the database and modifying administrator accounts to gain unauthorized remote access. The issue is fixed in versions 16.0.11 and 17.0.4.
CVSS v4.0
Score 9.3critical
Affected software
FreePBX
missedcall
pkg:github/freepbx/missedcallRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-73663 is an SQL injection vulnerability in the FreePBX missedcall module. Specifically, from versions 16.0.0 until 16.0.11 and 17.0.0 until 17.0.4, the module inserts inbound Caller ID names from SIP From headers directly into the missedcalllog database via agi-bin/missedcallnotify.php without escaping or using parameterized queries. This allows an unauthenticated attacker to execute arbitrary SQL commands when a monitored extension does not answer a call, which can corrupt the database and modify administrator accounts, leading to unauthorized remote access. The vulnerability has a CVSS 4.0 score of 9.3 (critical). The issue is resolved in versions 16.0.11 and 17.0.4.
Potential Impact
An unauthenticated attacker can exploit this SQL injection vulnerability to corrupt the FreePBX database and modify administrator accounts, potentially gaining unauthorized remote access to the system. This compromises the integrity and confidentiality of the affected FreePBX installation.
Mitigation Recommendations
This vulnerability is fixed in FreePBX missedcall module versions 16.0.11 and 17.0.4. Users should upgrade to at least these versions to remediate the issue. No other mitigation or temporary workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-13T14:04:09.606Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a7e3a17bf8831d539d70459
Added to database: 08/13/2026, 21:41:43 UTC
Last enriched: 08/21/2026, 13:54:19 UTC
Last updated: 09/27/2026, 13:47:47 UTC
Views: 108
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