CVE-2026-34098
Received Received - Intake

Guardian Language-System Stored XSS via Unsanitized id Parameter

Publication date: 2026-07-01

Last updated on: 2026-07-01

Assigner: VulnCheck

Description
Guardian language-system fails to sanitize the id GET parameter before inserting it into HTML source and form action attributes in media.php (lines 119, 129). An authenticated attacker can craft a URL that injects script tags executing in the victim's browser session.

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Meta Information

Published
2026-07-01
Last Modified
2026-07-01
Generated
2026-07-01
AI Q&A
2026-07-01
EPSS Evaluated
N/A
NVD
CVE-2026-34098
EUVD
EUVD-2026-41054

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability occurs because the Guardian language-system does not properly sanitize the 'id' parameter received via a GET request before inserting it into the HTML source and form action attributes in the media.php file. As a result, an authenticated attacker can craft a malicious URL that injects script tags, which then execute in the victim's browser session.

Impact Analysis

The impact of this vulnerability is that an attacker with authentication can execute arbitrary scripts in the context of a victim's browser session. This can lead to information disclosure, session hijacking, or other malicious actions that compromise the confidentiality and integrity of the user's data.

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