Vulnerabilities CVE-2026-75831

CVE-2026-75831

Medium

Open

TLP:CLEAR

Grav before 2.0.15 Stored XSS via audio/video source URL

NVD CVE.org

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Description

Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the audio and video media rendering through the sourceParsedownElement method. The media URL fragment is concatenated unescaped into rawHtml source elements, allowing attackers to inject arbitrary HTML and JavaScript that executes in viewers' sessions.

Details

CVSS Score: 5.1
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Confidence: 90%
Published: Aug 18, 2026
Last Modified: Aug 18, 2026

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