CVE-2026-40520

HighCVSS 8.8/10Last modified Oct 26, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78

Affected software

Vendor	Product	Versions
FreePBX	api	<= 17.0.8

References

Timeline

Published: Apr 21, 2026
Last modified: Oct 26, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-405218.8FrontAccounting before 2.4.20 contains a path traversal vulnerability in the attachment upload handler that allows authenticated attackers t CVE-2026-405227.1FrontAccounting before 2.4.20 contains a SQL injection vulnerability in the Bank Statement report handler that allows authenticated attacker CVE-2026-405238.1FrontAccounting before 2.4.20 contains a SQL injection vulnerability in the Audit Trail report handler that allows authenticated attackers w CVE-2026-405248.1FrontAccounting before 2.4.20 contains a SQL injection vulnerability in the get_gl_transactions() function where the filter_type parameter i CVE-2026-405259.1OpenViking prior to version 0.3.9 contains an authentication bypass vulnerability in the VikingBot OpenAPI HTTP route surface where the auth CVE-2026-405266.5Volmarg Personal Management System contains a path traversal vulnerability that allows authenticated attackers to read arbitrary files by su CVE-2026-405277.8radare2 prior to commit bc5a890 contains a command injection vulnerability in the afsv/afsvj command path where crafted ELF binaries can emb CVE-2026-405287.8OpenSC before 0.27.0, fixed in commit 0358817, contains a stack and heap buffer overrun vulnerability in the do_key_value() function in src/CVE-2026-405295.1CMS ALAYA provided by KANATA Limited contains an SQL injection vulnerability. Information stored in the database may be obtained or altered CVE-2026-40534.3Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to enforce the PostEditTimeLimit on non-message post fields which allows an a CVE-2026-405308.0An improper neutralization of CRLF sequences ('CRLF injection') vulnerability in User API in Synology DiskStation Manager (DSM) before 7.2.1 CVE-2026-405314.3An integer overflow or wraparound vulnerability in File Operation in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7