PT-2026-76931 · Grav · Grav

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CVE-2026-75831

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Published

2026-08-18

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Updated

2026-08-18

CVSS v3.1

7.6

High

VectorAV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Name of the Vulnerable Software and Affected Versions Grav versions prior to 2.0.15
Description Stored cross-site scripting occurs during the rendering of audio and video media via the sourceParsedownElement() function. The issue arises because the media URL fragment is concatenated without being escaped into rawHtml source elements, which allows attackers to inject arbitrary HTML and JavaScript that executes within the sessions of users viewing the content.
Recommendations Update Grav to version 2.0.15 or later.

Exploit

Fix

XSS

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Weakness Enumeration

Related Identifiers

CVE-2026-75831
GHSA-6QW9-4VV5-JR97

Affected Products

Grav