XWiki Platform CSRF (Cross-Site Request Forgery) Remote Code Execution durch Dokumentreferenz eines Scheduler Jobs

Successful exploitation of CVE-2024-31986 grants an attacker the ability to execute arbitrary code on the affected XWiki server. This could lead to complete system compromise, including data theft, modification, or deletion. The attack is triggered when an administrator visits the scheduler page or when the scheduler page is referenced, for example, via an image in a comment. The potential blast radius is significant, as the attacker could gain control of the entire server infrastructure hosting the XWiki instance. This vulnerability shares similarities with other document parsing vulnerabilities where malicious content injection leads to code execution.

Organizations heavily reliant on XWiki Platform for internal knowledge management or collaboration are at significant risk. Shared hosting environments where multiple users share the same XWiki instance are particularly vulnerable, as a compromised user account could be leveraged to exploit this vulnerability and impact other users. Legacy XWiki installations that have not been regularly updated are also at increased risk.

• linux / server:

journalctl -u xwiki | grep -i "XWiki.SchedulerJobClass"

• generic web:

curl -I <xwiki_url>/xwiki/bin/view/Scheduler/WebHome

Inspect the response headers for any unusual or unexpected content. • java: Monitor XWiki logs for unusual activity related to XObject creation and execution. Look for patterns indicating the creation of documents with crafted references.

1. 2024-04-10Disclosure

   disclosure

1. Reserviert2024-04-08
2. Veröffentlicht2024-04-10
3. Geändert2024-08-02
4. EPSS aktualisiert2026-04-02

The primary mitigation for CVE-2024-31986 is to upgrade XWiki Platform to version 15.5.5 or later. If immediate upgrading is not possible, a manual patch can be applied by modifying the Scheduler.WebHome page. This workaround involves carefully reviewing and sanitizing the code within that page to prevent the exploitation of the documented reference vulnerability. Consider implementing strict access controls to the scheduler page to limit potential exposure. Regularly review XWiki documentation for further security best practices.