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Vulnerability · Published Feb 3, 2026 · Assigned by fedora

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

High 8.1

In plain English

A high-severity security flaw in moodle. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 64.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagistmoodle/moodle4.1.22GHSA-j5jv-w5cw-j9ff
Packagistmoodle/moodle4.4.12GHSA-j5jv-w5cw-j9ff
Packagistmoodle/moodle4.5.8GHSA-j5jv-w5cw-j9ff
Packagistmoodle/moodle5.0.4GHSA-j5jv-w5cw-j9ff
Packagistmoodle/moodle5.1.1GHSA-j5jv-w5cw-j9ff

Affected products (as reported)

VendorProductVersions
moodle 4.1.0 – before 4.1.224.4.0 – before 4.4.124.5.0 – before 4.5.85.0.0 – before 5.0.45.1.0 – before 5.1.1

Weakness: CWE-280 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References