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EUVD-2026-159512

fkie_cve-2024-43400

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It is possible for a user without Script or Programming rights to craft a URL pointing to a page with arbitrary JavaScript. This requires social engineer to trick a user to follow the URL. This has been patched in XWiki 14.10.21, 15.5.5, 15.10.6 and 16.0.0.

GHSA-wcg9-pgqv-xm5v — XWiki Platform allows XSS through XClass name in string properties

Affected: Maven: org.xwiki.platform:xwiki-platform-oldcore

### Impact Is it possible for a user without Script or Programming rights to craft a URL pointing to a page with arbitrary JavaScript. This requires social engineer to trick a user to follow the URL.

#### Reproduction steps

1. As a user without script or programming right, create a (non-terminal) document named `" + alert(1) + "` (the quotes need to be part of the name). 1. Edit the class. 1. Add a string property named `"test"`. 1. Edit using the object editor and add an object of the created class 1. Get an admin to open `<xwiki-server>/xwiki/bin/view/%22%20%2B%20alert(1)%20%2B%20%22/?viewer=display&type=object&property=%22%20%2B%20alert(1)%20%2B%20%22.WebHome.test&mode=edit` where `<xwiki-server>` is the URL of your XWiki installation.

### Patches This has been patched in XWiki 14.10.21, 15.5.5, 15.10.6 and 16.0.0.

### Workarounds

We're not aware of any workaround except upgrading.

### References - https://jira.xwiki.org/browse/XWIKI-21810 - https://github.com/xwiki/xwiki-platform/commit/27eca8423fc1ad177518077a733076821268509c

WID-SEC-W-2024-1880 — xwiki: Mehrere Schwachstellen

Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in xwiki ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen oder beliebigen Programmcode auszuführen.