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I. Basic Information for CVE-2021-23401
Vulnerability Information

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Vulnerability Title
Open Redirect
Source: NVD (National Vulnerability Database)
Vulnerability Description
This affects all versions of package Flask-User. When using the make_safe_url function, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as /////evil.com/path or \\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using 'autocorrect_location_header=False.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
flask-user 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
flask-user是一个应用软件。可定制的用户认证和用户管理,注册、确认、登录、更改用户名、密码、忘记密码等。 Flask-User 存在安全漏洞,该漏洞源于当使用"make safe url"函数时,可以通过提供多个反斜杠来绕过url验证并将用户重定向到任意url。
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
-Flask-User 0 ~ unspecified -
II. Public POCs for CVE-2021-23401
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III. Intelligence Information for CVE-2021-23401
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IV. Related Vulnerabilities
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