CVE-2026-48903: Joomla!

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Inadequate content filtering within the checkAttribute methods leads to XSS vulnerabilities in various components.

Affected products

• Joomla! Joomla!: from 3.0.0, before 5.4.6 (fixed in 5.4.6); from 6.0.0, before 6.1.1 (fixed in 6.1.1)

Published 2026-05-26. Last modified 2026-07-24.