CVE-2023-35156 XWiki Platform vulnerable to reflected cross-site scripting via xredirect parameter in delete template
Attackers can inject JavaScript via the xredirect parameter in the delete template, potentially executing arbitrary code in user sessions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-35156?
CVE-2023-35156 is a critical cross-site scripting vulnerability in Xwiki Xwiki, published on 23 Jun 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2023-35156?
4 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-flamingo-skin-resources. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.xwiki.platform:xwiki-platform-flamingo-skin-resources Maven | From 15.0-rc-0 | 15.1 |
org.xwiki.platform:xwiki-platform-flamingo-skin-resources Maven | From 15.0-rc-0 | 15.1 |
org.xwiki.platform:xwiki-platform-flamingo-skin-resources Maven | From 6.0-rc-1 | 14.10.6 |
org.xwiki.platform:xwiki-platform-flamingo-skin-resources Maven | From 6.0-rc-1 | 14.10.6 |
Products include Xwiki Xwiki.
How do I fix CVE-2023-35156?
Upgrade org.xwiki.platform:xwiki-platform-flamingo-skin-resources to a fixed version for your release line: 15.1 or 14.10.6.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2023-35156 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-35156 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in Xwiki Xwiki
- CVE-2025-24893 XWiki Platform Eval Injection
- CVE-2025-53836 XWiki Rendering is vulnerable to RCE attacks when processing nested macros
- CVE-2024-55662 XWiki allows remote code execution through the extension sheet
- CVE-2024-55877 XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList
- CVE-2024-37901 XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet
Sources
Also known as GHSA-834c-x29c-f42c.