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.
Affected products
freepbx: api
References4
- github.com/FreePBX/api/commit/5f194e39a47e5481e8947f9694304d327… Patch
- github.com/FreePBX/api/blob/5f194e39a47e5481e8947f9694304d32724… Product
- github.com/FreePBX/api/blob/5f194e39a47e5481e8947f9694304d32724… Product
- www.vulncheck.com/advisories/freepbx-api-module-command-injecti… Third Party Advisory
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
8.6
HIGH
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 1% percentile: 73 · as of 13 November 2026
- CWE
- CWE-78
Could this be exploited in your environment?
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