Chess Tempo Viewer <= 0.9.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
EntreBase Advisory: The Chess Tempo Viewer plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 0.9.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Read more about this vulnerability: https://www.wordfence.com/threat-intel/vulnerabilities/id/0084ec4e-1c10-4bfe-a7c6-155aa9a48dc1?source=api-prod