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FreePBX is an open-source web-based graphical user interface. FreePBX 15, 16, and 17 endpoints are vulnerable due to insufficiently sanitized user-supplied data allowing unauthenticated access to FreePBX Administrator leading to arbitrary database manipulation and remote code execution. This issue has been patched in endpoint versions 15.0.66, 16.0.89, and 17.0.3.

CVE-2025-57819 is a critical security vulnerability classified under CWE-89 (SQL Injection) and CWE-288 (Authentication Bypass) affecting the FreePBX open-source web-based graphical user interface, specifically its endpoint versions 15, 16, and 17 prior to 15.0.66, 16.0.89, and 17.0.3 respectively. The flaw arises from insufficient sanitization of user-supplied input, allowing unauthenticated attackers to inject malicious SQL commands into the FreePBX Administrator interface. This injection enables arbitrary manipulation of the backend database, which can lead to unauthorized data access, modification, and potentially remote code execution on the underlying system. The vulnerability requires no authentication or user interaction, making exploitation straightforward over the network. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H) reflects a network attack vector with low complexity, no privileges or user interaction needed, and high impact on confidentiality, integrity, and availability. Although no public exploits have been reported yet, the critical nature of this vulnerability and the widespread use of FreePBX in telephony systems make it a prime target for attackers. The vulnerability was publicly disclosed on August 28, 2025, and patches have been released to remediate the issue. Failure to patch leaves organizations vulnerable to full system compromise, including data theft, service disruption, and potential pivoting within internal networks.

Exploit code for FreePBX  17.0.2 - Remote Code Execution (RCE)

Detailed information about CVE-2025-57819: CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in FreePBX security-repo

CVE-2025-57819: CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in FreePBX security-reporting - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2025-57819: CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in FreePBX endpoint

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