Vulnerability · Published Jul 1, 2026 · Assigned by VulnCheck
CVE-2026-34099Guardian Language-System Unauthenticated SQL Injection via id Parameter in job_info.php
Critical 9.8
In plain English
A critical-severity SQL 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 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 49.7% 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 an unsanitized SQL query in job_info.php (line 16): SELECT * FROM jobs where id = '\".$_GET['id'].\"'. No authentication is required. An unauthenticated attacker can perform error-based SQL injection to extract the database version, current user, schema names, and table contents.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| guardian | language-system | 0 – through e42c395ec4b03fe62973a669c9209a673838b8a4 |
Weakness: CWE-89 · 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-sql-injection-via-id-parameter-in-job-info-php third-party-advisory