CVE-2021-23435
High
Description
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).
SeverityHigh
CVSS7.6
Exploit probability—
ProductThoughtbot Clearance
PublishedSep 12, 2021
First seenSep 12, 2021
How to fix
Update
- thoughtbot clearance2.5.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| thoughtbot clearance | v < 2.5.0 | 2.5.0 |
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