Guardian Language-System SQL Injection via id Parameter in subtitles.php (CVE-2026-34103) | HOL Guard CVE

Critical · CVSS 9.8CVE-2026-34103

Guardian Language-System SQL Injection via id Parameter in subtitles.php

Answer in brief

CVE-2026-34103 records a Critical severity (CVSS 9.8) vulnerability in Guardian Language-System SQL Injection via id Parameter in subtitles.php. The current sources do not mark it as known exploited. The current feed maps guardian/language-system (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 1, 2026Updated Aug 24, 2026Source checked Aug 24, 2026First seen by HOL Jul 1, 2026Material review Aug 24, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps guardian/language-system (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
guardian/language-systemgeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for guardian/language-system.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Jul 1, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 1, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.