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HIGH · 7.6

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 leadin...

Vulnerability 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).

CVSS Score

7.6

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH

Affected Products

VendorProductVersions
ThoughtbotClearance< 2.5.0

Related Weaknesses (CWE)

CWE-601

References

FAQ

What is CVE-2021-23435?

CVE-2021-23435 is a vulnerability with a CVSS score of 7.6 (HIGH). 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 leadin...

How severe is CVE-2021-23435?

CVE-2021-23435 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-23435?

Check the references section above for vendor advisories and patch information. Affected products include: Thoughtbot Clearance.