CVE-2025-67853

HIGH 7.5

Moodle: moodle: brute-force facilitation due to missing rate limiting in confirmation email service

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

A flaw was found in Moodle. A remote attacker could exploit a lack of proper rate limiting in the confirmation email service. This vulnerability allows attackers to more easily enumerate or guess user credentials, facilitating brute-force attacks against user accounts.

CWE	CWE-307
Published	Feb 3, 2026
Last Updated	Feb 3, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/security/cve/CVE-2025-67853 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2423847

Credits

Red Hat would like to thank Petr Skoda for reporting this issue.