What’s Vulnerable › Vulnerabilities

CVE-2025-62394: Moodle: quiz notifications sent to suspended participants

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-23 · updated 2026-06-17
• Weakness: CWE-863

Description

Moodle failed to verify enrolment status correctly when sending quiz notifications. As a result, suspended or inactive users might receive quiz-related messages, leaking limited course information.

Affected products

• Moodle: from 4.5.0 before 4.5.7; from 5.0.0 before 5.0.3 — fixed in 4.5.7, 5.0.3

How to fix

Upgrade to a fixed version: Moodle 4.5.7, 5.0.3. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/security/cve/CVE-2025-62394
• https://bugzilla.redhat.com/show_bug.cgi?id=2404427

Get alerted when CVE-2025-62394 or the next vulnerability affects your stack