CVE-2023-35157 : Vulnerability Insights and Analysis

A detailed overview of the CVE-2023-35157 vulnerability affecting the XWiki Platform.

Understanding CVE-2023-35157

This section delves into the nature and impact of the vulnerability identified as CVE-2023-35157.

What is CVE-2023-35157?

The CVE-2023-35157 vulnerability affects the XWiki Platform due to improper neutralization of script-related HTML tags in a web page. Attackers can exploit this flaw via the 'delattachment' action, enabling reflected cross-site scripting (XSS) attacks.

The Impact of CVE-2023-35157

With a CVSS base score of 8.5 (High severity), this vulnerability can lead to significant impacts on confidentiality, integrity, and availability. Threat actors with high privileges can exploit this flaw to execute malicious scripts by manipulating a request to delete an attachment.

Technical Details of CVE-2023-35157

Explore the specific technical aspects of the CVE-2023-35157 vulnerability in this section.

Vulnerability Description

The vulnerability allows attackers to trigger XSS attacks by crafting requests to the delete attachment action with a specific attachment name. Successful exploitation depends on the attacker possessing the user's CSRF token or the user disregarding CSRF token warnings.

Affected Systems and Versions

The XWiki Platform versions affected by this vulnerability are >= 3.2-milestone-3, < 14.10.6, and >= 15.0-rc-0, < 15.1-rc-1.

Exploitation Mechanism

Exploiting CVE-2023-35157 requires attackers to manipulate requests to the 'delattachment' action while leveraging knowledge of the user's CSRF token or user behavior that ignores CSRF token alerts.

Mitigation and Prevention

Discover the steps to mitigate the risks associated with CVE-2023-35157 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update their XWiki Platform installations to the patched versions, namely XWiki 15.1-rc-1 and XWiki 14.10.6, to safeguard against this XSS vulnerability.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security audits, and educating users on CSRF token significance can enhance the overall security posture of XWiki installations.

Patching and Updates

Continuous monitoring for security advisories, promptly applying patches released by XWiki maintainers, and staying informed about vulnerability disclosures are essential for maintaining a secure XWiki environment.