CVE-2026-34103 CRITICAL

CVE-2026-34103: Guardian Language-System Unauthenticated SQL Injection via id Parameter in subtitles.php

Vendor Guardian
Product language-system
Weakness CWE-89 · SQLi
Published July 1, 2026
Last update July 1, 2026

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

Guardian language-system passes the id GET parameter directly into an unsanitized SQL query in subtitles.php (line 16): SELECT id, filename, extension, type FROM files where id = '\".$_GET['id'].\"'. An authenticated attacker can perform error-based SQL injection to extract database contents.

Key dates

02Disclosure timeline

July 1, 2026 CVE published
July 1, 2026 Record updated