• Project: Joomla!
• SubProject: CMS
• Impact: Low
• Severity: Low
• Versions: 3.0.0 - 3.9.25
• Exploit type: XSS
• Reported Date: 2021-03-09
• Fixed Date: 2021-04-13
• CVE Number: CVE-2021-26030

Description

Inadequate escaping allowed XSS attacks using the logo parameter of the default templates on error pages.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.25

Solution

Upgrade to version 3.9.26

Contact

The JSST at the Joomla! Security Centre.