CVE-2025-24973— Concorde not removing authentication tokens after logging out
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I. Basic Information for CVE-2025-24973
Vulnerability Information
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Vulnerability Title
Concorde not removing authentication tokens after logging out
Source: NVD (National Vulnerability Database)
Vulnerability Description
Concorde, formerly know as Nexkey, is a fork of the federated microblogging platform Misskey. Prior to version 12.25Q1.1, due to an improper implementation of the logout process, authentication credentials remain in cookies even after a user has explicitly logged out, which may allow an attacker to steal authentication tokens. This could have devastating consequences if a user with admin privileges is (or was) using a shared device. Users who have logged in on a shared device should go to Settings > Security and regenerate their login tokens. Version 12.25Q1.1 fixes the issue. As a workaround, clear cookies and site data in the browser after logging out.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不充分的会话过期机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
Concorde 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Concorde（Nexkey）是nexryai个人开发者的一个应用程序。 Concorde 12.25Q1.1版本之前存在代码问题漏洞，该漏洞源于注销过程实施不当，身份验证凭据仍会保留在cookie中，可能允许攻击者窃取身份验证令牌。
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)
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Affected Products
II. Public POCs for CVE-2025-24973
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IV. Related Vulnerabilities
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