CVE-2025-62397

MEDIUM 5.3

Moodle: router produces json instead of 404 error for invalid course id

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

The router’s inconsistent response to invalid course IDs allowed attackers to infer which course IDs exist, potentially aiding reconnaissance.

CWE	CWE-209
Published	Oct 23, 2025
Last Updated	Oct 23, 2025

Stay Ahead of the Next One

Get instant alerts for

Be the first to know when new medium vulnerabilities are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/security/cve/CVE-2025-62397 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2404430

Credits

Red Hat would like to thank Adam Jenkins for reporting this issue.