Description
In affected versions of WordPress, due to an issue in wp_validate_redirect() and URL sanitization, an arbitrary external link can be crafted leading to unintended/open redirect when clicked. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).
Remediation
References
Related Vulnerabilities
Apache HTTP Server Other Vulnerability (CVE-2004-0173)
WebLogic Improper Check for Unusual or Exceptional Conditions Vulnerability (CVE-2021-27568)
WordPress Plugin Grapefile File Sharing 'grapeupload.php' Arbitrary File Upload (1.1)
SharePoint Improper Certificate Validation Vulnerability (CVE-2019-1006)