Description
In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in the block editor, which is executed within the dashboard. It can lead to an admin opening the affected post in the editor leading to XSS.
Remediation
References
Related Vulnerabilities
WordPress Plugin WPeMatico RSS Feed Fetcher Cross-Site Scripting (2.6.11)
MySQL CVE-2018-2762 Vulnerability (CVE-2018-2762)
OpenSSL Other Vulnerability (CVE-2005-2969)
Moodle Permissions, Privileges, and Access Controls Vulnerability (CVE-2009-4299)
Oracle Database Server CVE-2007-5530 Vulnerability (CVE-2007-5530)