Vulnerability · Published Jul 1, 2026 · Assigned by VulnCheck
CVE-2026-34112Guardian Language-System Unauthenticated OS Command Injection via id Parameter in speechmac.php
Critical 9.8
In plain English
A critical-severity OS command injection in language-system from guardian. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.9%top 39.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Guardian language-system passes the id GET parameter directly into a PHP exec() call in speechmac.php (line 18) without sanitization: exec(\"php jobs/speech_audio_mac.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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| guardian | language-system | 0 – through e42c395ec4b03fe62973a669c9209a673838b8a4 |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- Researcher Disclosure technical-description, exploit
- https://www.vulncheck.com/advisories/guardian-language-system-unauthenticated-os-command-injection-via-id-parameter-in-speechmac-php third-party-advisory