[20260516] – Core – Incorrect Access Control in com_scheduler

• Project: Joomla!
• SubProject: CMS
• Impact: Moderate
• Severity: Low
• Probability: Low
• Versions: 4.1.0-5.4.5,6.0.0-6.1.0
• Exploit type: Incorrect Access Control
• Reported Date: 2026-04-29
• Fixed Date: 2026-05-26
• CVE Number: CVE-2026-48900

Description

An improper access check allowed low privileged users to edit the task types of existing scheduler tasks.

Affected Installs

Joomla! CMS versions 4.1.0-5.4.5,6.0.0-6.1.0

Solution

Upgrade to version 5.4.6,6.1.1

Contact

The JSST at the Joomla! Security Centre.