Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It is possible to persistently inject scripts in XWiki versions prior to 12.6.3 and 12.8. Unregistred users can fill simple text fields. Registered users can fill in their personal information and (if they have edit rights) fill the values of static lists using App Within Minutes. There is no easy workaround except upgrading XWiki. The vulnerability has been patched on XWiki 12.8 and 12.6.3.
Remediation
References
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5c66-v29h-xjh8
Related Vulnerabilities
CVE-2020-7795 Vulnerability in npm package get-npm-package-version
CVE-2021-3503 Vulnerability in maven package org.wildfly:wildfly-metrics
CVE-2016-0712 Vulnerability in maven package org.apache.portals.jetspeed-2:jetspeed-portal
CVE-2020-11987 Vulnerability in maven package org.apache.xmlgraphics:batik-svgbrowser