CVE-2023-35156: XWiki Platform vulnerable to reflected cross-site scripting via xredirect parameter in delete template

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-06-23 · updated 2026-06-17
Weakness: CWE-87

Description

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.

Affected products

xwiki-platform: from 6.0.1 before 14.10.6; 6.0-milestone1, 6.0-milestone2, 15.0 — fixed in 14.10.6

How to fix

Upgrade to a fixed version: xwiki-platform 14.10.6. Check the vendor advisory for mitigations.

References

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