[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.

Reported By: Federico Brasili, Linkedin