Description
Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests. Flask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection. As a workaround, use a reverse proxy to enforce trusted host headers.
Problem types
CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Product status
References
github.com/...uilder/security/advisories/GHSA-99pm-ch96-ccp2
github.com/...ommit/32eedbbb5cb483a3e782c5f2732de4a6a650d9b6