Description
Drupal Core is prone to an arbitrary file overwrite vulnerability. This can be coupled with other existing vulnerabilities to affect the vulnerable application in various ways. Drupal Core versions 8.x.x ranging from 8.0.0 and up to and including 8.7.14 are vulnerable.
Remediation
Update to Drupal Core version 8.9.13 or latest
References
Related Vulnerabilities
WordPress Plugin Custom Contact Forms Security Bypass (5.1.0.3)
Jboss EAP Permissions, Privileges, and Access Controls Vulnerability (CVE-2010-0738)
WordPress Plugin Software License Manager Cross-Site Scripting (4.4.7)
OpenSSL Improper Input Validation Vulnerability (CVE-2017-3733)
Jboss EAP Deserialization of Untrusted Data Vulnerability (CVE-2019-17531)