Cross-site Scripting (XSS) Affecting joomla-5.4 package, versions <5.4.10-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-JOOMLA54-20888364
- published14 Oct 2026
- disclosed30 Sept 2025
Introduced: 30 Sep 2025
CVE-2025-54476 (opens in a new tab)How to fix?
Upgrade Minimos:latest joomla-5.4 to version 5.4.10-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream joomla-5.4 package and not the joomla-5.4 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
Improper handling of input could lead to an XSS vector in the checkAttribute method of the input filter framework class.
References
- https://www.cve.org/CVERecord?id=CVE-2025-54476
- https://github.com/advisories/GHSA-fm22-g2q9-j3pw
- https://osv.dev/vulnerability/MINI-v7mm-wxm2-wc7v
- https://osv.dev/vulnerability/CVE-2025-54476
- https://developer.joomla.org/security-centre/929-20240205-core-inadequate-content-filtering-within-the-filter-code.html
- https://developer.joomla.org/security-centre/1010-20250901-core-inadequate-content-filtering-within-the-checkattribute-filter-code.html