CVE-2021-23435 - Vulnerability Details - OpenCVE

ReportizFlow

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).

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact High

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact None

AV:N/AC:M/Au:N/C:P/I:P/A:N

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Thoughtbot	Clearance

Configuration 1 [-]

cpe:2.3:a:thoughtbot:clearance:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://github.com/thoughtbot/clearance/pull/945
https://snyk.io/vuln/SNYK-RUBY-CLEARANCE-1577284

History

No history.

MITRE

Status: PUBLISHED

Assigner: snyk

Published: 2021-09-12T20:05:10.404Z

Updated: 2024-09-16T23:55:46.556Z

Reserved: 2021-01-08T00:00:00.000Z

Link: CVE-2021-23435

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-09-12T20:15:07.443

Modified: 2026-06-17T03:38:45.490

Link: CVE-2021-23435

Redhat

No data.

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