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I. Basic Information for CVE-2025-4513
Vulnerability Information

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Vulnerability Title
Catalyst User Key Authentication Plugin Logout logout.php redirect
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: NVD (National Vulnerability Database)
Vulnerability Title
moodle-auth_userkey 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
moodle-auth_userkey是Catalyst IT开源的一个用于在Moodle和外部web应用程序之间组织简单SSO(单点登录)的Auth插件。 moodle-auth_userkey 20220819版本存在输入验证错误漏洞,该漏洞源于对文件/auth/userkey/logout.php中参数return的错误操作导致开放重定向。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
CatalystUser Key Authentication Plugin 20220819 -
II. Public POCs for CVE-2025-4513
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III. Intelligence Information for CVE-2025-4513
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IV. Related Vulnerabilities
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