Sangoma FreePBX Authentication Bypass Vulnerability
FreePBX — endpoint
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.
10.0
93.3%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- User interaction
- None
- Confidentiality (Vulnerable System)
- High
- Integrity (Vulnerable System)
- High
- Availability (Vulnerable System)
- High
- Confidentiality (Subsequent System)
- High
- Integrity (Subsequent System)
- High
- Availability (Subsequent System)
- High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- Published
- Aug 28, 2025
- Modified
- Feb 26, 2026
- Added to KEV
- Aug 29, 2025
- Federal patch due
- Sep 19, 2025
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weakness classification
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2025-57819, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2025-57819 were found at last check. Absence here is not proof no exploit exists - see the references below for vendor advisories and write-ups.
References
Frequently asked questions
What is CVE-2025-57819?
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.
How severe is CVE-2025-57819?
CVE-2025-57819 has a CVSS base score of 10.0 out of 10 (CVSS 4.0).
Is CVE-2025-57819 actively exploited in the wild?
Yes. CVE-2025-57819 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Aug 29, 2025, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2025-57819?
93.3% - meaning FIRST.org's EPSS model estimates a 93.3% probability this vulnerability will be exploited in the wild within 30 days (100% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2025-57819?
Yes - a public Nuclei template referencing CVE-2025-57819 exist in public repositories we checked.
What type of vulnerability is CVE-2025-57819?
CVE-2025-57819 is classified under CWE-89, CWE-288 (CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')).
Cross-checked against
Impactr finds and proves whether CVE-2025-57819 - or flaws like it - are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.
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