XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Users are able to forge an URL with a payload allowing to inject Javascript in the page (XSS). It's possible to exploit the delete template to perform a XSS, e.g. by using URL such as: > xwiki/bin/get/FlamingoThemes/Cerulean?xpage=xpart&vm=delete.vm&xredirect=javascript:alert(document.domain). This vulnerability exists since XWiki 6.0-rc-1. The vulnerability has been patched in XWiki 14.10.6 and 15.1. Note that a partial patch has been provided in 14.10.5 but wasn't enough to entirely fix the vulnerability.
CVE ID: CVE-2023-35156
CVSS Base Severity: CRITICAL
CVSS Base Score: 9.7
Vendor: xwiki
Product: xwiki-platform
http/cves/2023/CVE-2023-35156.yaml
EPSS Score: 5.06% (probability of being exploited)
EPSS Percentile: 92.88% (scored less or equal to compared to others)
EPSS Date: 2025-02-03 (when was this score calculated)