CVE-2023-29525 Privilege escalation from view right on XWiki.Notifications.Code.LegacyNotificationAdministration in xwiki-platform

What is CVE-2023-29525?

CVE-2023-29525 is a critical code injection vulnerability in Xwiki Xwiki, published on 18 Apr 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. Affected versions of xwiki are subject to code injection in the `since` parameter of the `/xwiki/bin/view/XWiki/Notifications/Code/LegacyNotificationAdministration` endpoint. This provides an XWiki syntax injection attack via the since-parameter, allowing privilege escalation from view to programming rights and subsequent code execution privilege. The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.3, 14.4.8 and 14.10.3. Users are advised to upgrade. Users unable to upgrade may modify the page `XWiki.Notifications.Code.LegacyNotificationAdministration` to add the missing escaping. For versions < 14.6-rc-1 a workaround is to modify the file `<xwikiwebapp>/templates/distribution/eventmigration.wiki` to add the missing escaping.

Weakness: CWE-74

Which versions are affected by CVE-2023-29525?

8 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-distribution-war and org.xwiki.platform:xwiki-platform-legacy-events-hibernate-ui. It affects 1 product.

Products include Xwiki Xwiki.

How do I fix CVE-2023-29525?

Upgrade org.xwiki.platform:xwiki-platform-distribution-war to a fixed version for your release line: 13.10.11, 14.4.8 or 14.6-rc-1.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2023-29525 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-29525 exists.

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-jgg7-w2rj-58cj.