Freepbx
CVE-2025-55210
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V8 - Authorization Privilege context switching
|
| Impact | CVSS 7.5 (HIGH). Attack vector: Network. Complexity: High. Privileges required: Low. User interaction: None. Exploitation requires authentication. |
| Exploit ScenarioDerived | An attacker (requires authentication) could exploit this vulnerability to forge a valid JWT with full access to the REST and GraphQL APIs on a FreePBX tha. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Freepbx versions up to 17.0.5 contains a vulnerability that allows attackers to forge a valid JWT with full access to the REST and GraphQL APIs on a FreePBX tha (CVSS 7.5).
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 17.0.5. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
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Technical ContextAI · show details
affects Freepbx. FreePBX is an open-source web-based graphical user interface (GUI) that manages Asterisk. Prior to 17.0.5 and 16.0.17, FreePBX module api (PBX API) is vulnerable to privilege escalation by authenticated users with REST/GraphQL API access. This vulnerability allows an attacker to forge a valid JWT with full access to the REST and GraphQL APIs on a FreePBX that they've already connected to, possibly as a lower privileged user. The JWT is signed using the api-oauth.key private key. An attacker can
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
FreePBX is an open-source web-based graphical user interface (GUI) that manages Asterisk. Prior to 17.0.5 and 16.0.17, FreePBX module api (PBX API) is vulnerable to privilege escalation by authenticated users with REST/GraphQL API access. This vulnerability allows an attacker to forge a valid JWT with full access to the REST and GraphQL APIs on a FreePBX that they've already connected to, possibly as a lower privileged user. The JWT is signed using the api-oauth.key private key. An attacker can generate their own token if they possess this key (e.g., by accessing an affected instance), and specify any scopes they wish (e.g., rest, gql), bypassing traditional authorization checks. However, FreePBX enforces that the jti (JWT ID) claim must exist in the database (api_access_tokens table in the asterisk MySQL database) in order for the token to be accepted. Therefore, the attacker must know a jti value that already exists on the target instance. This vulnerability is fixed in 17.0.5 and 16.0.17.
Executive ViewAI
FreePBX instances running versions up to 17.0.5 are vulnerable to JWT forgery attacks that grant attackers complete API access without authentication. This affects any organization using FreePBX for unified communications and could enable unauthorized access to phone systems, call records, and configuration data.
Apply vendor patch. If immediate patching is not possible: implement network segmentation to restrict REST/GraphQL API access to trusted administrative networks only, enforce API rate limiting, monitor for JWT authentication anomalies, and disable GraphQL endpoints if not actively used.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.
Affected Products (CPE)GitHub Advisory
FreePBX 15, 16, and 17 contain SQL injection vulnerabilities enabling unauthenticated access to the administrator interf
The callme_startcall function in recordings/misc/callme_page.php in FreePBX 2.9, 2.10, and earlier allows remote attacke
admin/libraries/view.functions.php in FreePBX 2.9 before 2.9.0.14, 2.10 before 2.10.1.15, 2.11 before 2.11.0.23, and 12
htdocs_ari/includes/login.php in the ARI Framework module/Asterisk Recording Interface (ARI) in FreePBX before 2.9.0.9,
Authenticated arbitrary file upload in the FreePBX Endpoint Manager module (FreePBX 16 before 16.0.92 and FreePBX 17 bef
Authenticated SQL injection in the FreePBX Endpoint Manager module allows a user holding a valid, known FreePBX username
Authentication bypass in the FreePBX Endpoint Manager module lets remote, unauthenticated attackers impersonate any targ
Sangoma FreePBX 115.0.16.26 and below, 14.0.13.11 and below, 13.0.197.13 and below have Incorrect Access Control. Rated
Sangoma Technologies FreePBX before cdr 15.0.18, 16.0.40, 15.0.16, and 16.0.17 was discovered to contain an access contr
FreePBX 10.13.66-32bit and 14.0.1.24 (SNG7-PBX-64bit-1712-2) allow post-authentication SQL injection via the order param
Multiple cross-site scripting (XSS) vulnerabilities in FreePBX 2.9 and earlier allow remote attackers to inject arbitrar
An issue was discovered in Manager 13.x before 13.0.2.6 and 15.x before 15.0.6 before FreePBX 14.0.10.3. Rated medium se
Exploit-DB