The Media Usage WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the id parameter in the ~/mmu_admin.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.0.4.Creditsp7e4Referenceshttps://www.wordfence.com/vulnerability-advisories/#CVE-2021-34652https://plugins.trac.wordpress.org/browser/media-usage/trunk/mmu_admin.php#L91