Description
The Simple Download Monitor plugin before 3.5.4 for WordPress has XSS via the sdm_upload_thumbnail (aka File Thumbnail) parameter in an edit action to wp-admin/post.php.
References
- https://github.com/d4wner/Vulnerabilities-Report/blob/master/simple-download-monitor.md
- https://github.com/Arsenal21/simple-download-monitor/issues/27
- https://wordpress.org/support/topic/stored-xss-bug-at-the-latest-version-of-simple-download-monitor/
- https://github.com/Arsenal21/simple-download-monitor/commit/8ab8b9166bc87feba26a1573cf595af48eff7805