Description An issue was discovered in Joomla! 3.2.0 through 3.9.24. Missing input validation within the template manager. Remediation References CVE-2021-23131 Related Vulnerabilities IBM RTC Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2016-9973) WordPress Plugin Booking Multiple Vulnerabilities (2.5) Apache HTTP Server Other Vulnerability (CVE-2006-4110) WordPress Plugin Essential Addons for Elementor Multiple Cross-Site Scripting Vulnerabilities (4.5.3) Oracle JRE CVE-2013-0431 Vulnerability (CVE-2013-0431) Severity High Classification CVE-2021-23131 CWE-20 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Tags Missing Update Known Vulnerabilities