GitHub Advisoryadvisory · Packagist
GHSA-fm22-g2q9-j3pw Joomla! CMS vulnerable to XSS via the input filter
MEDIUM
Official page ↗
- Aliases
- CVE-2025-54476
- Ecosystem
- Packagist
- Packages
- joomla/filter
- Severity
- Moderate
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
- Weaknesses
- CWE-79
- Reviewed
- 2025-10-01
Affected packages
• Packagist joomla/filter: >= 4.0.0, < 4.0.1 → fixed in 4.0.1
• Packagist joomla/filter: >= 3.0.0, < 3.0.5 → fixed in 3.0.5
• Packagist joomla/filter: < 2.0.6 → fixed in 2.0.6
Description
Improper handling of input could lead to a cross-site scripting (XSS) vector in the checkAttribute method of the input filter framework class.
Related
Alias · CVE (1)
- CVE-2025-54476 Improper handling of input could lead to an XSS vector in the checkAttribute method of the input filter framework class. vulnerability
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-54476 advisory
- https://github.com/joomla-framework/filter/commit/188dd3fccd6fa0532d105a52736affdf6b166217 web
- https://github.com/joomla-framework/filter/commit/852c7e101c649500d3af58ffb8baf15d7c86d825 web
- https://github.com/joomla-framework/filter/commit/fcde280785f188e93530f7da68102f7dd8f9f723 web
- https://developer.joomla.org/security-centre/1010-20250901-core-inadequate-content-filtering-within-the-checkattribute-filter-code.html web
- https://github.com/joomla/joomla-cms package