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CVE-2025-55211

FreePBX Post-Authenticated Command Injection

HIGH
8.8
CVSS Score
Published: September 15, 2025 at 09:00 PM UTC
Updated: June 17, 2026 at 09:41 AM UTC
2 products affected across 2 vendorsFreePBXFramework

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

FreePBX is an open-source web-based graphical user interface. From 17.0.19.11 to before 17.0.21, authenticated users of the Administrator Control Panel (ACP) can run arbitrary shell commands by maliciously changing languages of the framework module. This vulnerability is fixed in 17.0.21.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

FreePBX· Sangoma
95%
17.0.19.11 ≤ v < 17.0.21
Framework· Freepbx
60%
v < 17.0.21
Affected range stops below 17.0.21, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMMitigationThird Party Advisory
Source: [email protected]
https://github.com/FreePBX/security-reporting/security/advisories/GHSA-xg83-m6q5-q24h

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78

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