Critical, CVSS 9.9MavenPublished
org.xwiki.platform:xwiki-platform-skin-ui Eval Injection vulnerability
CVE-2023-37462 · GHSA-h4vp-69r8-gvjg
- Affected
- Maven org.xwiki.platform:xwiki-platform-skin-ui >= 7.0-rc-1, < 14.4.8; >= 14.5, < 14.10.4
- Fixed in
- 14.10.414.4.8· Vendor fix available
- Issue
- Impact Improper escaping in the document SkinsCode.XWikiSkinsSheet leads to a possible privilege escalation from view right on that document to programming rights, or in other words, it is possible to execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. The attack works by opening a non-existing page with a name crafted to contain a dangerous payload. It is possible to check if an existing installation is vulnerable by opening <xwiki-host/xwiki/bin/view/%22%5D%5D%20%7B%7Basync%20async%3D%22true%22%20cached%3D%22false%22%20context%3D%22doc.reference%22%7D%7D%7B%7Bgroovy%7D%7Dprintln(%22Hello%20%22%20%2B%20%22from%20groovy!%22)%7B%7B%2Fgroovy%7D%7D%7B%7B%2Fasync%7D%7D?sheet=SkinsCode.XWikiSkinsSheet&xpage=view where <xwiki-host is the URL of the XWiki installation. The expected result are two list items with "Edit this skin" and "Test this skin" without any further text. If…
Recommended action: Upgrade to 14.10.4 or 14.4.8 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.