CVE-2025-67848 Moodle: moodle: authentication bypass via lti provider allows suspended users to gain unauthorized access.

What is CVE-2025-67848?

CVE-2025-67848 is a high-severity authentication bypass vulnerability in Moodle Moodle, published on 3 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw was found in Moodle. This authentication bypass vulnerability allows suspended users to authenticate through the Learning Tools Interoperability (LTI) Provider. The issue arises from the LTI authentication handlers failing to enforce the user's suspension status, enabling unauthorized access to the system. This can lead to information disclosure or other unauthorized actions by users who should be restricted.

Weakness: CWE-280

Which versions are affected by CVE-2025-67848?

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

Products include Moodle Moodle.

How do I fix CVE-2025-67848?

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

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

Is CVE-2025-67848 being exploited?

There is no known exploitation of CVE-2025-67848 in the wild and no public exploit code.

Other vulnerabilities in Moodle Moodle

• CVE-2006-4935 File upload in n/a Critical 10.0
• CVE-2006-4936 Moodle does not properly validate module instance id Critical 10.0
• CVE-2004-2233 Unknown "front page vulnerability with Moodle servers" for Moodle before 1.3.2 has unknown impact and attack vectors. Critical 10.0
• CVE-2004-2235 Cross-site scripting in n/a Critical 10.0
• CVE-2004-2236 Other in n/a Critical 10.0

All Moodle Moodle vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-moodle-2025-67848, GHSA-j5jv-w5cw-j9ff, UBUNTU-CVE-2025-67848.