Description
Drupal Core is prone to multiple security bypass vulnerabilities. Exploiting these issues may allow attackers to upload files that bypass the file validation process implemented by modules on the site, or to disclose field data information. Drupal Core versions 9.1.x ranging from 9.1.0 and up to and including 9.1.12 are vulnerable.
Remediation
Update to Drupal Core version 9.1.13 or latest
References
Related Vulnerabilities
WordPress Plugin Sermon Browser Multiple Cross-Site Scripting Vulnerabilities (0.45.15)
WordPress Plugin Real-Time Find and Replace Cross-Site Request Forgery (3.9)
WordPress Plugin Twitter LiveBlog Cross-Site Request Forgery (1.1.2)
Plone CMS Improper Restriction of XML External Entity Reference Vulnerability (CVE-2020-28736)