CVE-2026-34108

Guardian Language-System Unauthenticated OS Command Injection via id Parameter in text.php

CVSS 9.3 CRITICALEPSS 0.5%CWE-78

Vexday Risk Score

48Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Proof of concept

Public proof of concept exists, but not yet automated.

CVSS 9.3EPSS 0.5%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

01 Jul 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

Guardian language-system passes the id GET parameter directly into a PHP exec() call in text.php (line 15) without sanitization: exec(\"php jobs/text.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.

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

Affected products

guardian · language-system

public PoCs found — 1

cve_referencegist.github.com/cyberinforepo/d5b2771d82e1b31b8fc1c33052e08dadunverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

https://gist.github.com/cyberinforepo/d5b2771d82e1b31b8fc1c33052e08dad https://www.vulncheck.com/advisories/guardian-language-system-unauthenticated-os-command-injection-via-id-parameter-in-text-php