Description WordPress before 4.9.2 has XSS in the Flash fallback files in MediaElement (under wp-includes/js/mediaelement). Remediation References CVE-2018-5776 Related Vulnerabilities Plone CMS Use of Externally-Controlled Format String Vulnerability (CVE-2017-5524) Moodle Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2016-9187) WordPress Plugin Zingiri Web Shop Unspecified Vulnerability (2.6.5) MySQL CVE-2018-2780 Vulnerability (CVE-2018-2780) Liferay Portal Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2021-33328) Severity Medium Classification CVE-2018-5776 CWE-707 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Tags Missing Update Known Vulnerabilities