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Vulnerabilities

Vulnerability · CVE-2025-4513

A vulnerability classified as problematic was found in Catalyst User Key Authentication Plugin 20220819 on Moodle.

Published May 10, 2025 · catalog updated May 12, 2025 · Catalyst User Key Authentication Plugin

Check if you run it

No confirmed exploitation is on record for CVE-2025-4513. EPSS is 0.46%. Act only if a listed version of Catalyst User Key Authentication Plugin is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.46%
Remediation
Vendor / distro source
Affected products
vendor Catalyst User Key Authentication Plugin 20220819

A vulnerability classified as problematic was found in Catalyst User Key Authentication Plugin 20220819 on Moodle. Affected by this vulnerability is an unknown functionality of the file /auth/userkey/logout.php of the component Logout. The manipulation of the argument return leads to open redirect. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Catalyst User Key Authentication Plugin 2022081920220819

How to fix CVE-2025-4513

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-4513. EPSS is 0.46%. Act only if a listed version of Catalyst User Key Authentication Plugin is installed.

Which versions are affected?

Compare what you have installed with Catalyst User Key Authentication Plugin 20220819 20220819. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.46%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 10, 2025 · EUVD

    Detected

    A vulnerability classified as problematic was found in Catalyst User Key Authentication Plugin 20220819 on Moodle. Affected by this vulnerability is an unknown functionality of the file /auth/userkey/logout.php of the component Logout. The manipulation of the argument return leads to open redirect. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. T

  2. May 12, 2025 · EUVD

    Updated

    A vulnerability classified as problematic was found in Catalyst User Key Authentication Plugin 20220819 on Moodle. Affected by this vulnerability is an unknown functionality of the file /auth/userkey/logout.php of the component Logout. The manipulation of the argument return leads to open redirect. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. T

Sources

  • CVE.orgVulnerability recordCVE-2025-4513

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-4513

    30-day exploitation probability 0.5%

    first.org
  • EUVDVulnerability recordEUVD-2025-14242

    A vulnerability classified as problematic was found in Catalyst User Key Authentication Plugin 20220819 on Moodle. Affected by this vulnerability is an unknown functionality of the file /auth/userkey/logout.php of the component Logout. The manipulation of the argument return lead

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.