Advisory Database
  • Advisories
  • Dependency Scanning
  1. composer
  2. ›
  3. moodle/moodle
  4. ›
  5. CVE-2025-67853

CVE-2025-67853: Moodle Affected by Improper Restriction of Excessive Authentication Attempts

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.

References

  • access.redhat.com/security/cve/CVE-2025-67853
  • bugzilla.redhat.com/show_bug.cgi?id=2423847
  • github.com/advisories/GHSA-5cx4-w4fh-fr57
  • github.com/moodle/moodle
  • moodle.org/mod/forum/discuss.php?d=471303
  • nvd.nist.gov/vuln/detail/CVE-2025-67853

Code Behaviors & Features

Detect and mitigate CVE-2025-67853 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 4.1.22, all versions starting from 4.4.0-beta before 4.4.12, all versions starting from 4.5.0-beta before 4.5.8, all versions starting from 5.0.0-beta before 5.0.4, all versions starting from 5.1.0-beta before 5.1.1

Fixed versions

  • 4.1.22
  • 4.4.12
  • 4.5.8
  • 5.0.4
  • 5.1.1

Solution

Upgrade to versions 4.1.22, 4.4.12, 4.5.8, 5.0.4, 5.1.1 or above.

Impact 7.5 HIGH

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

Learn more about CVSS

Weakness

  • CWE-307: Improper Restriction of Excessive Authentication Attempts

Source file

packagist/moodle/moodle/CVE-2025-67853.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Mon, 09 Feb 2026 12:19:32 +0000.