Description
Drupal Core is prone to an open redirect vulnerability because the application fails to properly verify user-supplied input. Exploiting this issue may allow attackers to redirect users to arbitrary web sites and conduct phishing attacks; other attacks are also possible. Drupal Core versions 7.x ranging from 7.0 and up to and including 7.69 are vulnerable.
Remediation
Update to Drupal Core version 7.70 or latest
References
Related Vulnerabilities
PHP Out-of-bounds Read Vulnerability (CVE-2017-11147)
WordPress Use of Insufficiently Random Values Vulnerability (CVE-2017-17091)
MediaWiki Exposure of Resource to Wrong Sphere Vulnerability (CVE-2021-31548)
Vulnerable JavaScript libraries
WordPress Permissions, Privileges, and Access Controls Vulnerability (CVE-2007-1893)