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URL Redirection to Untrusted Site ('Open Redirect')


Severity Medium
Score 6.1/10


Flask-AppBuilder is an application development framework, built on top of the Flask web framework. Flask-AppBuilder contains an open redirect vulnerability when using database authentication login page on versions below 3.4.5rc1. This issue is fixed in version 3.4.5rc1. There are currently no known workarounds.

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CWE-601 - Open Redirect

An open redirect attack employs a URL parameter, HTML refresh tags, or a DOM based location change to exploit the trust of a vulnerable domain to direct the users to a malicious website. The attack could lead to higher severity vulnerabilities such as unauthorized access control, account takeover, XSS, and more.

Advisory Timeline

  • Published