CVE-2025-67853

HIGH

Moodle < 4.1.22 - Improper Restriction of Excessive Authentication Attempts

Title source: llm
STIX 2.1

Description

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.

References (2)

Core 2
Core References
Third Party Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2025-67853
Third Party Advisory issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2423847

Scores

CVSS v3 7.5
EPSS 0.0042
EPSS Percentile 33.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-307
Status published
Products (3)
moodle/moodle 5.1.0
moodle/moodle < 4.1.22
moodle/moodle 0 - 4.1.22Packagist
Published Feb 03, 2026
Tracked Since Feb 18, 2026