CVE-2025-55210

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account, but needs a user to act. Limited direct impact.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-02-12 17:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 09:41 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.4% in the next 30 days (EPSS).
• Severity: 2.0 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2026-02-12 17:16 UTC

Last modified

2026-06-17 09:41 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-270

Record status

Analyzed

Affected

• Sangoma Freepbx < 16.0.17
• Sangoma Freepbx < 17.0.5

Attack profile CVSS 4.0 · 2.0

Attack vector

Network

Complexity

High

Attack requirements

Present

Privileges needed

Low

User interaction

Active

Confidentiality

Low

Integrity

Low

Availability

None

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2025-55210.md and follow it. Check whether this project is affected by CVE-2025-55210. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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