CVE-2026-40520
HIGH SEVERITYCVSS Score & Metrics
Base Score
7.2 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Vulnerability Description
FreePBX api module version 17.0.8 and prior contain a command injection vulnerability in the initiateGqlAPIProcess() function where GraphQL mutation input fields are passed directly to shell_exec() without sanitization or escaping. An authenticated user with a valid bearer token can send a GraphQL moduleOperations mutation with backtick-wrapped commands in the module field to execute arbitrary commands on the underlying host as the web server user.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-78
Source
NVD
Vendor
FreePBX
Product
api
External References
- https://github.com/FreePBX/api/blob/5f194e39a47e5481e8947f9694304d32724175f6/Api.class.php#L546C1-L554C3
- https://github.com/FreePBX/api/blob/5f194e39a47e5481e8947f9694304d32724175f6/ApiGqlHelper.class.php#L34C1-L36C136
- https://github.com/FreePBX/api/commit/5f194e39a47e5481e8947f9694304d32724175f6
- https://www.vulncheck.com/advisories/freepbx-api-module-command-injection-via-graphql
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