Home/CVE/Sangoma FreePBX Authentication Bypass Vulnerability
CVE

CVE-2025-57819

Sangoma FreePBX Authentication Bypass Vulnerability

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.

CRITICAL · CVSS 9.8 ⚠ CISA KEV EPSS 0.76952
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 1% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬢

Required Remediation

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

CWE-288Authentication Bypass Using an Alternate Path or Channel
CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
▤

Affected Products & Versions

3
sangoma freepbx>= 15.0 and < 15.0.66
sangoma freepbx>= 16.0 and < 16.0.89
sangoma freepbx>= 17.0 and < 17.0.3
⚠

Public Exploits & PoCs

2
nucleiFreePBX - Remote Code Executioncritical
pocgithub.com · watchTowr-vs-FreePBX-CVE-2025-57819github.com
◈

Detection Rules (IDS/IPS)

2
et-openET WEB_SPECIFIC_APPS FreePBX ajax.php endpoint module SQL Injection Attempt (CVE-2025-57819) M1attempted-admin
et-openET WEB_SPECIFIC_APPS FreePBX ajax.php endpoint module SQL Injection Attempt (CVE-2025-57819) M2attempted-admin
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Aug 2025 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisaKEV-CVE-2025-57819
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://community.freepbx.org/t/security-advisory-please-lock-down-your-administrator-access/107203Issue TrackingVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-57819US Government Resource
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