23 Oct 2026 15:48:27 UTC
FreePBX api module Command Injection via GraphQL
cve-program · CVE-2026-40520 · Published
CVE-2026-40520
FreePBX api module Command Injection via GraphQL
CVSS 4.0 8.6 HIGHCVSS 3.1 7.2 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-40520
PublishedFreePBX 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.
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