CVE-2025-3627 Moodle: partial data exposure in moodle before completing multi-factor authentication

Medium 4.3 Published Updated

Attackers can access sensitive student data before completing multi-factor authentication, requiring Moodle administrators to apply security patches.

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-2025-3627?

CVE-2025-3627 is a medium-severity authentication bypass vulnerability in Moodle Moodle, published on 25 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A security vulnerability was discovered in Moodle that allows some users to access sensitive information about other students before they finish verifying their identities using two-factor authentication (2FA).

Weakness: CWE-287

Which versions are affected by CVE-2025-3627?

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

PackageAffectedFixed in
moodle/moodle PackagistFrom 4.3.0-beta4.3.12
moodle/moodle PackagistFrom 4.3.0-beta4.3.12
moodle/moodle PackagistFrom 4.4.0-beta4.4.8
moodle/moodle PackagistFrom 4.4.0-beta4.4.8
moodle/moodle PackagistFrom 4.5.0-beta4.5.4
moodle/moodle PackagistFrom 4.5.0-beta4.5.4
1 more packages
moodle BitnamiFrom 4.3.04.3.12, 4.4.8, 4.5.4

Products include Moodle Moodle.

How do I fix CVE-2025-3627?

Upgrade moodle/moodle to a fixed version for your release line: 4.3.12, 4.4.8 or 4.5.4.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-3627 being exploited?

There is no known exploitation of CVE-2025-3627 in the wild and no public exploit code.

All Moodle Moodle vulnerabilities

Sources

Also known as BIT-moodle-2025-3627, GHSA-x45j-jq9q-gf3q, UBUNTU-CVE-2025-3627.

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