[20260518] – Core – Transport encryption downgrade for password and username reset links

• Project: Joomla!
• SubProject: CMS
• Impact: Low
• Severity: Low
• Probability: Low
• Versions: 3.9.0-5.4.5,6.0.0-6.1.0
• Exploit type: Mixed Content
• Reported Date: 2026-04-20
• Fixed Date: 2026-05-26
• CVE Number: CVE-2026-48902

Description

The password and username reset features created plain http links for https connections if the “Force SSL” flag wasn’t explicitly set.

Affected Installs

Joomla! CMS versions 3.9.0-5.4.5,6.0.0-6.1.0

Solution

Upgrade to version 5.4.6,6.1.1

Contact

The JSST at the Joomla! Security Centre.