CVE-2025-57819 is a critical vulnerability affecting Sangoma's FreePBX, specifically versions 15, 16, and 17. This vulnerability allows unauthenticated access to the FreePBX Administrator, resulting in arbitrary database manipulation and potential remote code execution. The vulnerability stems from insufficiently sanitized user-supplied data, making it critical for organizations to address this issue promptly.
The vulnerability has a CVSS score of 10, indicating its critical nature. Organizations using affected versions of FreePBX should prioritize patching immediately, as the risk to organizations includes unauthorized access and data compromise. The public has access to exploit information, which increases the urgency for remediation.
This vulnerability was disclosed on August 28, 2025, with known exploitation status. Sangoma has released patches in endpoint versions 15.0.66, 16.0.89, and 17.0.3, which should be applied without delay.
Given the critical impact, organizations must take immediate action to secure their FreePBX installations and mitigate potential threats.
Vulnerability Details
CVE-2025-57819 is classified as a critical vulnerability due to its potential for exploitation leading to remote code execution. The official CVE description states that FreePBX is an open-source web-based graphical user interface. The affected versions include FreePBX 15, 16, and 17, which are vulnerable due to insufficiently sanitized user-supplied data allowing unauthenticated access to FreePBX Administrator. This vulnerability is categorized under CWE-89 (SQL Injection) and CWE-288 (Authentication Bypass).
The vulnerability has a CVSS score of 10, indicating a critical severity level. The attack vector is network-based, with low complexity and no privileges required for exploitation. The potential impacts are severe, affecting confidentiality, integrity, and availability.
Technical Analysis
The root cause of CVE-2025-57819 lies in the improper sanitization of user inputs, which leads to unvalidated access to administrative functions. This vulnerability can be exploited remotely through network access, requiring no special privileges or user interaction. The attack complexity is low, making it easily exploitable by malicious actors.
In terms of impact, this vulnerability can lead to high confidentiality and integrity impacts, as attackers may manipulate sensitive data or execute arbitrary code. The availability impact is also significant, as it can disrupt normal operations.
Risk & Impact Analysis
The risk to organizations includes substantial potential damage from unauthorized access. Attackers may leverage this vulnerability to gain control over FreePBX installations, impacting communication services and sensitive information. The blast radius could be extensive, as many organizations rely on FreePBX for critical telephony services.
Organizations should prioritize patching immediately to mitigate risks associated with this vulnerability. The CVSS score and known exploitation status highlight the urgency of addressing this issue.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
Affected versions include FreePBX 15, 16, and 17 prior to the respective patch versions: 15.0.66, 16.0.89, and 17.0.3. Organizations should upgrade to these patched versions to mitigate the risk.
Mitigation & Remediation
Organizations are urged to apply the patches available for FreePBX versions 15.0.66, 16.0.89, and 17.0.3 immediately. In addition to patching, organizations should consider implementing network controls to restrict access to the FreePBX Administrator interface to trusted IP ranges only.
For further security, organizations should regularly conduct application security assessments to identify potential weaknesses in their systems.
Detection Guidance
Organizations should monitor logs for any unauthorized access attempts to the FreePBX Administrator interface. Behavioral anomalies such as unusual database queries or modifications should be flagged for further investigation.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-57819 highlights the importance of secure coding practices in web-based applications. Security teams should take this incident as a reminder to implement robust input validation mechanisms to prevent similar vulnerabilities.
This vulnerability represents a trend towards increasing exploitation of authentication bypass vulnerabilities in web applications. Continuous monitoring and proactive security measures are crucial in mitigating such risks.
Organizations should leverage insights from this vulnerability to strengthen their security posture. Implementing a comprehensive red teaming service can help identify and address potential vulnerabilities before they are exploited.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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