CVE-2023-35156 Explained : Impact and Mitigation

XWiki Platform is vulnerable to reflected cross-site scripting via the xredirect parameter in the delete template.

Understanding CVE-2023-35156

XWiki Platform allows users to inject JavaScript into pages through forged URLs, leading to a cross-site scripting (XSS) vulnerability via the delete template.

What is CVE-2023-35156?

XWiki Platform, a generic wiki platform, enables attackers to inject malicious scripts into pages by manipulating URLs, posing a security risk.

The Impact of CVE-2023-35156

This vulnerability allows for the execution of arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2023-35156

The vulnerability stems from improper neutralization of alternate XSS syntax (CWE-87) in XWiki Platform.

Vulnerability Description

By crafting a malicious URL with a payload, an attacker can inject JavaScript code to perform XSS attacks, exploiting the delete template.

Affected Systems and Versions

XWiki Platform versions from 6.0-rc-1 to 14.10.6 and 15.0-rc-0 to 15.1 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can abuse the xredirect parameter in the delete template to execute JavaScript code through specially crafted URLs.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks associated with CVE-2023-35156.

Immediate Steps to Take

Users should update XWiki Platform to version 14.10.6 or 15.1 to apply the necessary patches and prevent exploitation of this vulnerability.

Long-Term Security Practices

Implement secure coding practices, input validation mechanisms, and regular security audits to prevent XSS vulnerabilities in web applications.

Patching and Updates

Maintain a proactive approach by staying informed about security updates for XWiki Platform and promptly applying patches to address known vulnerabilities.