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 MySQL CVE-2018-3247 Vulnerability (CVE-2018-3247) PHP Other Vulnerability (CVE-2005-3392) Moodle Improper Input Validation Vulnerability (CVE-2009-1171) WordPress Plugin KittyCatfish Ads by Missilesilo SQL Injection (2.2) IBM RTC Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2021-29673) 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