CVE-2023-26480 : What You Need to Know

This CVE record highlights a vulnerability in XWiki-Platform that allows for stored Cross-site Scripting via the HTML displayer in Live Data.

Understanding CVE-2023-26480

This vulnerability, indexed as CVE-2023-26480, affects XWiki-Platform, a generic wiki platform. It enables a user without script rights to introduce stored cross-site scripting by utilizing the Live Data macro.

What is CVE-2023-26480?

The CVE-2023-26480 vulnerability in XWiki-Platform allows an attacker to execute stored Cross-site Scripting attacks through the HTML displayer in Live Data. This type of attack can lead to the manipulation of website content and the stealing of sensitive information.

The Impact of CVE-2023-26480

The impact of CVE-2023-26480 is rated as high severity, with a CVSS v3.1 base score of 8.9. This vulnerability has a low attack complexity and requires user interaction. It can result in high confidentiality and integrity impact, with low availability impact.

Technical Details of CVE-2023-26480

This section outlines specific technical details related to CVE-2023-26480.

Vulnerability Description

The vulnerability in XWiki-Platform arises in versions starting from 12.10, where a user lacking script rights can exploit the Live Data macro to introduce stored cross-site scripting. The issue has been addressed in XWiki versions 14.9, 14.4.7, and 13.10.10.

Affected Systems and Versions

The following versions of XWiki-Platform are affected by CVE-2023-26480:

Versions >= 12.10, < 13.10.10
Versions >= 14.0, < 14.4.7
Versions >= 14.5, < 14.9

Exploitation Mechanism

This vulnerability can be exploited by an attacker using the Live Data macro in XWiki-Platform to inject malicious scripts, leading to the execution of stored cross-site scripting attacks.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-26480, it is crucial to take immediate and long-term security measures.

Immediate Steps to Take

Users should update their XWiki-Platform installations to the patched versions (14.9, 14.4.7, or 13.10.10) to prevent exploitation of the vulnerability.
Regularly monitor and restrict user permissions to mitigate the risk of unauthorized script execution.

Long-Term Security Practices

Implement a robust security policy that includes regular security audits and code reviews to identify and address vulnerabilities promptly.
Educate users on safe coding practices and the risks associated with cross-site scripting attacks to prevent future incidents.

Patching and Updates

XWiki users are advised to apply the latest patches and updates provided by the platform to ensure protection against CVE-2023-26480 and other known vulnerabilities. Regularly checking for security advisories and applying recommended patches is essential for maintaining a secure platform environment.