CVE-2023-35161 Explained : Impact and Mitigation

A critical vulnerability has been identified in XWiki Platform that allows attackers to execute reflected cross-site scripting (XSS) attacks via the xredirect parameter in the DeleteApplication page. This CVE has a CVSS base score of 9.7, indicating its severity.

Understanding CVE-2023-35161

XWiki Platform is susceptible to XSS attacks that can be triggered by crafting a malicious URL with a JavaScript payload. The vulnerability exists in versions ranging from XWiki 6.2-milestone-1 to versions prior to 14.10.5 and 15.1-rc-1.

What is CVE-2023-35161?

XWiki Platform is a generic wiki platform that provides runtime services for applications built on top of it. By manipulating the xredirect parameter in the DeleteApplication page, attackers can inject malicious JavaScript code into the page, leading to XSS attacks.

The Impact of CVE-2023-35161

The vulnerability poses a high risk to confidentiality, integrity, and availability of the targeted system. If exploited, an attacker can execute arbitrary JavaScript code within the context of a user's session, potentially leading to further compromise of sensitive data.

Technical Details of CVE-2023-35161

The following technical details outline the specific aspects of the vulnerability.

Vulnerability Description

The vulnerability in XWiki Platform allows attackers to craft URLs with payloads to inject JavaScript code, enabling XSS attacks. Exploiting the DeleteApplication page facilitates the execution of XSS attacks.

Affected Systems and Versions

XWiki Platform versions from 6.2-milestone-1 to 14.10.5 and 15.1-rc-1 are impacted by this vulnerability. Users of these versions are advised to take immediate action to mitigate the risk.

Exploitation Mechanism

By manipulating the xredirect parameter in the URL of the DeleteApplication page, attackers can insert JavaScript code that will be executed within the context of a user's session, leading to XSS attacks.

Mitigation and Prevention

To protect systems from CVE-2023-35161 and similar vulnerabilities, it is crucial to implement the following security measures.

Immediate Steps to Take

Update XWiki Platform to version 14.10.5 or 15.1-rc-1, where the vulnerability has been addressed.
Monitor and filter user inputs to detect and prevent XSS attacks.
Educate users on safe browsing practices to minimize the risk of executing malicious scripts.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities proactively.
Stay informed about security updates and patches released by XWiki to safeguard against emerging threats.

Patching and Updates

XWiki Platform users should apply the necessary patches and updates provided by the vendor to ensure that their systems are protected against known vulnerabilities.