VULNERABILITY INTELLIGENCE

CVE-2021-23435

CVSS score7.6 HIGH
EPSS probability0.70%
CISA KEVNot currently listed
Published2021-09-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

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).

Weakness classification

  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

Primary references