FreePBX is an open-source IP PBX system widely used for managing communication systems. Prior to versions 16.0.10 and 17.0.5, the FreePBX logfiles module contains several authenticated SQL injection vulnerabilities. These vulnerabilities allow attackers with high privileges to manipulate SQL queries, potentially leading to unauthorized access and data exposure. Given the nature of this vulnerability, organizations using affected versions are at significant risk.
The severity of this flaw is high, with a CVSS score of 8.6, indicating a serious threat that requires immediate attention. This score reflects the potential impact on confidentiality, integrity, and availability, which are all rated as high. The fact that exploitation can be executed over a network with low complexity further elevates the urgency for remediation.
Organizations should prioritize patching immediately. Versions 16.0.10 and 17.0.5 have addressed these vulnerabilities, and applying these updates will mitigate the risks associated with SQL injection attacks.
Currently, there is no known public exploit, and the vulnerability is not listed in the Known Exploited Vulnerabilities (KEV) catalog. However, the absence of known exploits does not diminish the potential risk. Organizations must remain vigilant and proactive in their security measures.
Vulnerability Details
The vulnerability described allows for authenticated SQL injection attacks, categorized under CWE-89. The affected versions of FreePBX include all versions prior to 16.0.10 and 17.0.5. The issue has been patched in these versions, ensuring that organizations can secure their systems against unauthorized access.
Published on March 5, 2026, this vulnerability has been analyzed and documented thoroughly. The CVSS score of 8.6 reflects the high severity of the issue, highlighting the need for organizations to act swiftly.
Technical Analysis
The root cause of this vulnerability stems from improper validation of user input in the logfiles module, allowing attackers to inject malicious SQL queries. The attack vector is network-based, which means that an attacker can exploit this vulnerability remotely. A low attack complexity indicates that minimal technical knowledge is needed to exploit the flaw.
This vulnerability requires high privileges, meaning that an attacker must have a valid account to execute an attack. User interaction is not required, making it easier for an attacker to exploit the vulnerability without needing the victim's cooperation.
The impacts of successful exploitation are severe: confidentiality, integrity, and availability of the system can all be compromised. Organizations must understand the critical nature of this vulnerability and take steps to remediate it.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to sensitive data and the potential for data breaches. The blast radius of this vulnerability can extend to all instances of FreePBX running vulnerable versions, affecting numerous organizations globally.
Given the high CVSS score and the potential for real-world exploitation, organizations should address this vulnerability in their priority patch cycle. The urgency of remediation is further supported by the presence of high confidentiality, integrity, and availability impacts.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of FreePBX include all versions prior to 16.0.10 and 17.0.5. Organizations running these versions should update to the latest versions to mitigate the vulnerability.
Mitigation & Remediation
To remediate this vulnerability, organizations should apply the patches provided in versions 16.0.10 and 17.0.5. For those unable to update immediately, implementing strict access controls and monitoring logs for unusual activities can serve as temporary measures.
Furthermore, organizations can benefit from conducting a thorough security assessment to identify and mitigate any other potential vulnerabilities within their systems. Continuous security testing is recommended to ensure that new vulnerabilities do not arise post-remediation.
penetration testing can also help in validating the effectiveness of the applied patches.
Detection Guidance
Organizations should monitor logs for any anomalies that may indicate exploitation attempts. Specifically, look for unusual SQL query patterns and access attempts from unauthorized users.
Additionally, behavioral analysis can help identify any deviations from normal operational patterns that may suggest malicious activity.
AppSecure Threat Intelligence Insight
The discovery of this SQL injection vulnerability in FreePBX highlights the importance of continuous security evaluation and the need for robust security practices. Organizations should implement a comprehensive security framework that includes regular updates and proactive monitoring.
This incident serves as a reminder to security teams of the evolving threat landscape and the need to stay informed about emerging vulnerabilities. Regular training and awareness programs can further enhance an organization's security posture.
Vulnerability management programs should be designed to adapt to the changing threat environment, ensuring that organizations can respond effectively to new risks.
Cloud penetration testing can also play a crucial role in identifying weaknesses that may have been overlooked.
API security assessments should be included in the security strategy, especially for applications that rely on integrated services.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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