CVE-2025-62401 Moodle: possible to bypass timer in timed assignments

Medium 5.4 Published Updated

Students can bypass time restrictions in Moodle timed assignments, gaining unauthorized extra time to complete assessments.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-62401?

CVE-2025-62401 is a medium-severity vulnerability in Moodle Moodle, published on 23 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue in Moodle’s timed assignment feature allowed students to bypass the time restriction, potentially giving them more time than allowed to complete an assessment.

Weakness: CWE-285

Which versions are affected by CVE-2025-62401?

9 open source packages ship an affected version, including moodle/moodle and moodle. It affects 1 product.

PackageAffectedFixed in
moodle/moodle PackagistAll versions4.1.21
moodle/moodle PackagistAll versions4.1.21
moodle/moodle PackagistFrom 4.2.0-beta4.4.11
moodle/moodle PackagistFrom 4.2.0-beta4.4.11
moodle/moodle PackagistFrom 4.5.0-beta4.5.7
moodle/moodle PackagistFrom 4.5.0-beta4.5.7
3 more packages
moodle/moodle PackagistFrom 5.0.0-beta5.0.3
moodle/moodle PackagistFrom 5.0.0-beta5.0.3
moodle BitnamiFrom 4.1.04.1.21, 4.4.11, 4.5.7, 5.0.3

Products include Moodle Moodle.

How do I fix CVE-2025-62401?

Upgrade moodle/moodle to a fixed version for your release line: 4.1.21, 4.4.11, 4.5.7 or 5.0.3.

Is CVE-2025-62401 being exploited?

There is no known exploitation of CVE-2025-62401 in the wild and no public exploit code.

All Moodle Moodle vulnerabilities

Sources

Also known as BIT-moodle-2025-62401, GHSA-w29j-8phw-ffjf, UBUNTU-CVE-2025-62401.

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