XSS in Joomla! Project Cms

CVE-2025-54476

Improper handling of input could lead to an XSS vector in the checkAttribute method of the input filter framework class.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (21.8th percentile) — read the EPSS interpretation.

Affected products

Joomla! Project Cms — versions 3.0.0-3.10.20, 4.0.0-4.4.13, 5.0.0-5.3.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

security@joomla.org (vendor-advisory)

Frequently asked questions

What is CVE-2025-54476?: CVE-2025-54476 is a vulnerability in Joomla! Project Cms, classified under Cross-site Scripting. Published 2025-09-30.
Is CVE-2025-54476 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.