CVE-2026-34110
Guardian Language-System Unauthenticated OS Command Injection via id Parameter in complex_start.php
- State
- Published
- Severity
- 9.3 Critical
- Published
- Jul 1, 2026
- Updated
- Jul 14, 2026
- Reserved
- Mar 25, 2026
Description
Guardian language-system passes the id GET parameter directly into a PHP exec() call in complex_start.php (line 14) without sanitization: exec(\"php jobs/complex.php \".$login_session.\" \".$_GET['id'].\" ...\"). No authentication is required. An unauthenticated remote attacker can append shell metacharacters to execute arbitrary OS commands on the server.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
| Product | Versions |
|---|---|
language-systemguardian |
|
References
- Researcher Disclosuretechnical-descriptionexploit
- https://www.vulncheck.com/advisories/guardian-language-system-unauthenticated-os-command-injection-via-id-parameter-in-complex-start-phpthird-party-advisory
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