CVE-2026-48900
Analyzed Analyzed - Analysis Complete

Improper Access Control in Joomla Scheduler Tasks

Publication date: 2026-05-26

Last updated on: 2026-05-26

Assigner: Joomla! Project

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

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Meta Information

Published
2026-05-26
Last Modified
2026-05-26
Generated
2026-07-06
AI Q&A
2026-05-26
EPSS Evaluated
2026-07-05
NVD
CVE-2026-48900
EUVD
EUVD-2026-31879

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
joomla joomla! From 6.0.0 (inc) to 6.1.1 (exc)
joomla joomla! From 4.1.0 (inc) to 5.4.6 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

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Executive Summary

CVE-2026-48900 is a security vulnerability in the Joomla! CMS affecting versions 4.1.0 through 5.4.5 and 6.0.0 through 6.1.0.

The issue involves an improper access check in the com_scheduler component, which allows low-privileged users to edit the task types of existing scheduler tasks.

This means that users who should not have permission to modify certain scheduled tasks can do so due to incorrect access control.

Impact Analysis

This vulnerability could allow unauthorized users with low privileges to modify scheduled tasks within the Joomla! CMS.

Such unauthorized modifications could lead to unexpected or malicious task executions, potentially disrupting normal operations or compromising system integrity.

Although classified as moderate impact with low severity and low probability of exploitation, it still poses a risk to the security and stability of affected Joomla! installations.

Mitigation Strategies

To mitigate this vulnerability, users should upgrade their Joomla! CMS installations to versions 5.4.6 or 6.1.1, where the issue has been fixed.

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