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 WordPress Plugin Simple PDF Viewer Cross-Site Scripting (1.9) WordPress Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2019-17674) WordPress Plugin FV Flowplayer Video Player SQL Injection (7.5.46.7212) WordPress Plugin RSVPMaker SQL Injection (6.1.9) MySQL CVE-2021-2293 Vulnerability (CVE-2021-2293) Severity Medium Classification CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Tags Missing Update Known Vulnerabilities CWE-707 CVE-2018-5776