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Joomla 5.4.9, 6.1.4 Sicherheitslücke geschlossen

Project: Joomla!
SubProject: CMS
Impact: Moderate
Severity: Moderate
Probability: Low
Versions: 1.5.0-5.4.8,6.0.0-6.1.3
Exploit type: XSS
Reported Date: 2026-08-19
Fixed Date: 2026-09-25
CVE Number: CVE-2026-92232

Description
The cleanAttribute method removes HTML data URIs, however injected whitespaces characters could circumvent that cleanup, causing an XSS vector.
Affected Installs
Joomla! CMS versions 1.5.0-5.4.8, 6.0.0-6.1.3
Solution
Upgrade to version 5.4.9, 6.1.4
Contact
The JSST at the Joomla! Security Centre.
Reported By:  arib06

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Updates Installieren

Welche Versionen sind betroffen?

Joomla bis 5.4.8, 6.1.3


Korrigierte Versionen

Joomla 5.4.9, 6.1.4

Quellen und weitere Informationen

  • developer.joomla.org →
    https://developer.joomla.org/security-centre/1096-20260916-core-xss-filter-bypass-in-inputfilter-via-whitespace-characters-in-html-data-uris.html