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CVE-2025-67853

Good to know:

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Date: February 3, 2026

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.

Severity Score

Related Resources (6)

https://moodle.org/mod/forum/discuss.php?d=471303
https://github.com/moodle/moodle
https://access.redhat.com/security/cve/CVE-2025-67853
https://bugzilla.redhat.com/show_bug.cgi?id=2423847
https://nvd.nist.gov/vuln/detail/CVE-2025-67853
https://www.mend.io/vulnerability-database/CVE-2025-67853

Severity Score

Weakness Type (CWE)

Improper Restriction of Excessive Authentication Attempts

CWE-307

Top Fix

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Upgrade Version

Upgrade to version moodle/moodle - v4.1.22;moodle/moodle - v4.4.12;moodle/moodle - v4.5.8;moodle/moodle - v5.0.4;moodle/moodle - v5.1.1;https://github.com/moodle/moodle.git - v5.1.1;https://github.com/moodle/moodle.git - v4.4.12;https://github.com/moodle/moodle.git - v4.1.22;https://github.com/moodle/moodle.git - v5.0.4;https://github.com/moodle/moodle.git - v4.5.8

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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