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Status published
Medium
CVE-2025-54476
Joomla! Core - [20250901] Inadequate content filtering within the checkAttribute filter code
Vulnerability Description
Improper handling of input could lead to an XSS vector in the checkAttribute method of the input filter framework class.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Flydragon, Poi, Cwy, Xtrimi
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Affected Vendor
Joomla! Project
View all reports →Affected Software
Joomla! CMS
Vulnerable Versions:
3.0.0-3.10.20, 4.0.0-4.4.13, 5.0.0-5.3.3
Timeline
Official Publish:
September 30th, 2025
Last Modified:
October 1st, 2025
Added to House:
July 22nd, 2026