CVE-2026-26046: Moodle: moodle: improper input sanitization in tex filter administration setting

Published Feb 19, 2026
·
Updated

A vulnerability was found in a Moodle TeX filter administrative setting where insufficient sanitization of configuration input could allow command injection. On sites where the TeX filter is enabled and ImageMagick is installed, a maliciously crafted setting value entered by an administrator could result in unintended system command execution. While exploitation requires administrative privileges, successful compromise could affect the entire Moodle server.

Affected Software

4 affected components
Moodle Moodle
Moodle Moodle<4.5.9
Moodle Moodle>=5.0.0<5.0.5
Moodle Moodle>=5.1.0<5.1.2

Event History

Feb 19, 2026
Data Sourced
via Red Hat·08:53 AM
DescriptionSeverityAffected Software
Feb 21, 2026
CVE Published
via MITRE·05:40 AM
Data Sourced
via MITRE·05:40 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·06:17 AM
DescriptionSeverityWeaknessAffected Software
Oct 18, 58128
Event
via FIRST·10:34 AM
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Frequently Asked Questions

1

What is the severity of CVE-2026-26046?

CVE-2026-26046 has a medium severity level due to its potential for command injection via insufficient input sanitization.

2

How do I fix CVE-2026-26046?

To fix CVE-2026-26046, ensure that you update your Moodle installation to the latest version which addresses the input sanitization issue.

3

What does CVE-2026-26046 affect?

CVE-2026-26046 affects Moodle installations that have the TeX filter enabled and may specifically impact configurations using ImageMagick.

4

Can CVE-2026-26046 lead to a security breach?

Yes, CVE-2026-26046 can potentially lead to security breaches through command injection if exploited by attackers.

5

When was CVE-2026-26046 published?

CVE-2026-26046 was published to alert users regarding the discovered vulnerability in the Moodle TeX filter settings.

Contact

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