CVE-2023-45136 XWiki Platform web templates vulnerable to reflected XSS in the create document form if name validation is enabled

What is CVE-2023-45136?

CVE-2023-45136 is a critical cross-site scripting vulnerability in Xwiki Xwiki, published on 25 Oct 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. When document names are validated according to a name strategy (disabled by default), XWiki starting in version 12.0-rc-1 and prior to versions 12.10.12 and 15.5-rc-1 is vulnerable to a reflected cross-site scripting attack in the page creation form. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation. This has been patched in XWiki 14.10.12 and 15.5-rc-1 by adding appropriate escaping. The vulnerable template file `createinline.vm` is part of XWiki's WAR and can be patched by manually applying the changes from the fix.

Weakness: CWE-79

Which versions are affected by CVE-2023-45136?

4 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-web-templates. It affects 1 product.

Products include Xwiki Xwiki.

How do I fix CVE-2023-45136?

Upgrade org.xwiki.platform:xwiki-platform-web-templates to a fixed version for your release line: 14.10.12 or 15.5-rc-1.

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-2023-45136 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-45136 exists.

Public exploit code: 1 Nuclei template.

Other vulnerabilities in Xwiki Xwiki

• CVE-2025-24893 XWiki Platform Eval Injection Exploited Critical 9.8
• CVE-2025-53836 XWiki Rendering is vulnerable to RCE attacks when processing nested macros Critical 10.0
• CVE-2024-55662 XWiki allows remote code execution through the extension sheet Critical 10.0
• CVE-2024-55877 XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList Critical 10.0
• CVE-2024-37901 XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet Critical 10.0

All Xwiki Xwiki vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-qcj9-gcpg-4w2w.