CVE-2026-90914: Joomla! Core - [20260904] - Core - XSS in the generic media output layouts in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3
Published Sep 29, 2026
·Updated
Joomla! Core - [20260904] - Core - XSS in the generic media output layouts in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - Lack of escaping leads to an XSS vulnerability in the generic audio and video output layouts.
Affected Software
1 affected component
Joomla joomla>=4.0.0<=5.4.8, >=6.0.0<=6.1.3
Event History
Sep 29, 2026
CVE Published
via MITRE·04:42 PM
Data Sourced
via MITRE·04:42 PM
DescriptionWeakness
Data Sourced
via NVD·05:17 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Which Joomla versions are affected?
The affected ranges are Joomla 4.0.0 through 5.4.8 and Joomla 6.0.0 through 6.1.3.
2
Which functionality is involved?
The issue affects the generic audio and video output layouts. The vulnerability results from missing escaping in those media output layouts.
3
What is the vulnerability type?
This is a cross-site scripting (XSS) vulnerability caused by insufficient escaping.