CVE-2025-67852 Moodle: moodle: open redirect vulnerability in oauth login flow allows redirection to malicious sites.

Low 3.5 Published Updated

Remote attackers can redirect authenticated Moodle users to malicious sites via the OAuth login flow, facilitating phishing and information disclosure.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2025-67852?

CVE-2025-67852 is a low-severity vulnerability in Moodle Moodle, published on 3 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A flaw was found in Moodle. An open redirect vulnerability in the OAuth login flow allows a remote attacker to redirect users to attacker-controlled pages after they have successfully authenticated. This occurs due to insufficient validation of redirect parameters, which could lead to phishing attacks or information disclosure.

Weakness: CWE-601

Which versions are affected by CVE-2025-67852?

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

PackageAffectedFixed in
moodle/moodle PackagistAll versions4.1.22
moodle/moodle PackagistAll versions4.1.22
moodle/moodle PackagistFrom 4.4.0-beta4.4.12
moodle/moodle PackagistFrom 4.4.0-beta4.4.12
moodle/moodle PackagistFrom 4.5.0-beta4.5.8
moodle/moodle PackagistFrom 4.5.0-beta4.5.8
5 more packages
moodle/moodle PackagistFrom 5.0.0-beta5.0.4
moodle/moodle PackagistFrom 5.0.0-beta5.0.4
moodle/moodle PackagistFrom 5.1.0-beta5.1.1
moodle/moodle PackagistFrom 5.1.0-beta5.1.1
moodle BitnamiAll versions4.1.22, 4.4.11, 4.5.8, 5.0.4, 5.1.1

Products include Moodle Moodle.

How do I fix CVE-2025-67852?

Upgrade moodle/moodle to a fixed version for your release line: 4.1.22, 4.4.12, 4.5.8 or 5.0.4.

Is CVE-2025-67852 being exploited?

There is no known exploitation of CVE-2025-67852 in the wild and no public exploit code.

All Moodle Moodle vulnerabilities

Sources

Also known as BIT-moodle-2025-67852, GHSA-qv78-6gpp-hm68, UBUNTU-CVE-2025-67852.

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