Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Simple users can create global SSX/JSX without specific rights: in theory only users with Programming Rights should be allowed to create SSX or JSX that are executed everywhere on a wiki. But a bug allow anyone with edit rights to actually create those. This issue has been patched in XWiki 13.10-rc-1, 12.10.11 and 13.4.6. There's no easy workaround for this issue, administrators should upgrade their wiki.
Remediation
References
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-ghcq-472w-vf4h
https://jira.xwiki.org/browse/XWIKI-19155
Related Vulnerabilities
CVE-2019-10086 Vulnerability in maven package commons-beanutils:commons-beanutils
CVE-2016-8741 Vulnerability in maven package org.apache.qpid:qpid-broker-core
CVE-2019-8331 Vulnerability in maven package org.webjars.npm:bootstrap
CVE-2018-9206 Vulnerability in maven package org.webjars.npm:blueimp-file-upload
CVE-2022-28158 Vulnerability in maven package com.surenpi.jenkins:phoenix-autotest