CVE-2021-23435

This affects the package clearance before 2.5.0. The vulnerability can be possible when users are able to set the value of session[:return_to]. If the value used for return_to contains multiple leading slashes (/////example.com) the user ends up being redirected to the external domain that comes after the slashes (http://example.com).

Date published : 2021-09-12

https://github.com/thoughtbot/clearance/pull/945

https://snyk.io/vuln/SNYK-RUBY-CLEARANCE-1577284