CVE-2023-27480 Data leak through a XAR import XXE attack in xwiki-platform-xar-model

What is CVE-2023-27480?

CVE-2023-27480 is a high-severity vulnerability in Xwiki Xwiki, published on 7 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions any user with edit rights on a document can trigger an XAR import on a forged XAR file, leading to the ability to display the content of any file on the XWiki server host. This vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1. Users are advised to upgrade. Users unable to upgrade may apply the patch `e3527b98fd` manually.

Weakness: CWE-611

Which versions are affected by CVE-2023-27480?

6 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-xar-model. It affects 1 product.

Products include Xwiki Xwiki.

How do I fix CVE-2023-27480?

Upgrade org.xwiki.platform:xwiki-platform-xar-model to a fixed version for your release line: 13.10.11, 14.4.7 or 14.10-rc-1.

Is CVE-2023-27480 being exploited?

There is no known exploitation of CVE-2023-27480 in the wild and no public exploit code.

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-gx4f-976g-7g6v.