CVE-2023-26475 : What You Need to Know

This CVE-2023-26475 involves a vulnerability in the XWiki Platform that exposes it to Remote Code Execution in Annotations. It was published on March 2, 2023, with a critical base severity score of 10.

Understanding CVE-2023-26475

This vulnerability affects the XWiki Platform, specifically involving a privilege context switching error and improper privilege management.

What is CVE-2023-26475?

The XWiki Platform, known for being a generic wiki platform, experiences a flaw where the annotation displayer fails to execute content in a restricted context. This allows for the execution of arbitrary content with the rights of the author of any document through the process of annotating the document.

The Impact of CVE-2023-26475

With a high base score and critical severity level, this vulnerability can result in high impacts on confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2023-26475

The vulnerability description highlights the failure of the annotation displayer to execute content in a restricted context, leading to Remote Code Execution in Annotations.

Vulnerability Description

The flaw allows attackers to execute arbitrary code with the author's document rights through annotating a document on the XWiki Platform.

Affected Systems and Versions

XWiki Platform versions from >= 2.3-milestone-1 to < 13.10.11
XWiki Platform versions from >= 14.0-rc-1 to < 14.4.7
XWiki Platform versions from >= 14.5 to < 14.10

Exploitation Mechanism

The vulnerability arises due to the improper handling of annotations in the XWiki Platform, enabling threat actors to execute unauthorized code within the context of the author's document.

Mitigation and Prevention

It is crucial to take immediate steps to address and mitigate the impact of CVE-2023-26475 by following recommended security practices.

Immediate Steps to Take

Update XWiki Platform to the patched versions: 13.10.11, 14.4.7, or 14.10 to eliminate the vulnerability.
Implement access controls and restrict privileges to minimize the risk of unauthorized code execution.

Long-Term Security Practices

Regularly monitor security advisories and updates from XWiki to stay informed about potential vulnerabilities.
Conduct security assessments and penetration testing to identify and address any security weaknesses proactively.

Patching and Updates

Ensure timely installation of security patches and updates provided by XWiki to protect the platform and prevent exploitation of vulnerabilities like CVE-2023-26475.