CVE-2026-71572: Joomla!

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Joomla! Core - [20260801] - Response header injection in download views in Joomla 3.0.0-5.4.7, 6.0.0-6.1.2 - Lack of output processing allowed a header injection in the multiple download views, leading to reflected file download / content-type confusion.

Affected products

• Joomla! Joomla!: from 3.0.0, before 5.4.8 (fixed in 5.4.8); from 6.0.0, up to and including 6.1.3

Published 2026-08-18. Last modified 2026-09-03.