Description
XWiki Platform is a generic wiki platform. Starting in version 3.3-milestone-2 and prior to versions 14.10.4 and 15.0-rc-1, it's possible for a user to execute anything with the right of the author of the XWiki.ClassSheet document. This has been patched in XWiki 15.0-rc-1 and 14.10.4. There are no known workarounds.
Remediation
References
https://github.com/xwiki/xwiki-platform/commit/de72760d4a3e1e9be64a10660a0c19e9534e2ec4
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-36fm-j33w-c25f
https://jira.xwiki.org/browse/XWIKI-20566
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CVE-2017-1000452 Vulnerability in npm package samlify
CVE-2017-12648 Vulnerability in maven package com.liferay:com.liferay.frontend.taglib