Vulnerability · Published May 10, 2025 · Assigned by VulDB
CVE-2025-4513Catalyst User Key Authentication Plugin Logout logout.php redirect
Medium 4.3
In plain English
A medium-severity open redirect in User Key Authentication Plugin from Catalyst. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Catalyst | User Key Authentication Plugin | 20220819 |
Weakness: CWE-601 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
References
- VDB-308233 | Catalyst User Key Authentication Plugin Logout logout.php redirect vdb-entry, technical-description
- VDB-308233 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #564090 | Catalyst IT Australia User key authentication 2022081901 Open Redirect third-party-advisory
- https://github.com/Cyber-Wo0dy/report/blob/main/moodle/key_user_authentication/v2022081901/key_user_authentication_open_redirection exploit