CVE-2023-30537 : Vulnerability Insights and Analysis

A critical vulnerability has been discovered in XWiki Platform, specifically in the xwiki-platform-flamingo-theme-ui, that can lead to privilege escalation. This CVE has been assigned a base score of 9.9, categorizing it as critical.

Understanding CVE-2023-30537

This section delves into the details of CVE-2023-30537.

What is CVE-2023-30537?

CVE-2023-30537 highlights an improper neutralization of directives in dynamically evaluated code (Eval Injection) vulnerability in XWiki Platform. This flaw can be exploited by a user with the ability to add an object on a page, allowing them to execute arbitrary code.

The Impact of CVE-2023-30537

The vulnerability in xwiki-platform-flamingo-theme-ui can result in high confidentiality and integrity impacts, with low privileges required and availability impact.

Technical Details of CVE-2023-30537

In this section, we explore the technical aspects of CVE-2023-30537.

Vulnerability Description

XWiki Platform is susceptible to a privilege escalation vulnerability due to improper escaping of the styles properties in the

FlamingoThemesCode.WebHome

page, which comes pre-installed in the platform.

Affected Systems and Versions

The vulnerability affects XWiki Platform versions 12.6.6 to 13.10.11, 14.0-rc-1 to 14.4.7, and 14.5 to 14.10.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting and executing Groovy, Python, or Velocity code through the affected page, thereby gaining unauthorized access.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent the exploitation of CVE-2023-30537.

Immediate Steps to Take

Users are advised to update their XWiki Platform to the patched versions, including 13.10.11, 14.4.7, or 14.10, to eliminate the vulnerability.

Long-Term Security Practices

Implement strict input validation and sanitization methods to prevent code injection attacks. Regularly monitor security advisories and apply patches promptly.

Patching and Updates

Stay informed about security updates from XWiki and apply patches as soon as they are released to ensure the security of your XWiki installation.