CVE-2023-37908 : Security Advisory and Response
Learn about CVE-2023-37908, a critical vulnerability in xwiki-rendering-xml that allows for cross-site scripting attacks. Find out the impacted systems, exploitation mechanisms, and mitigation steps.
This article provides detailed information about CVE-2023-37908, a critical vulnerability in xwiki-rendering-xml that allows for cross-site scripting attacks.
Understanding CVE-2023-37908
This section will cover key details about the CVE-2023-37908 vulnerability in xwiki-rendering-xml.
What is CVE-2023-37908?
CVE-2023-37908 is a critical vulnerability in xwiki-rendering-xml that enables cross-site scripting attacks by injecting arbitrary HTML code via invalid attribute names.
The Impact of CVE-2023-37908
This vulnerability can be exploited to execute malicious JavaScript code in the context of a user session, potentially leading to server-side code execution and compromising the confidentiality, integrity, and availability of the XWiki instance.
Technical Details of CVE-2023-37908
In this section, we will delve into the technical aspects of CVE-2023-37908.
Vulnerability Description
XWiki Rendering is a generic system that converts textual input into another syntax. Version 14.6-rc-1 introduced a flaw that allowed the injection of arbitrary HTML code, leading to cross-site scripting attacks through invalid attribute names.
Affected Systems and Versions
The vulnerability affects xwiki-rendering versions >= 14.6-rc-1 and < 14.10.4.
Exploitation Mechanism
By manipulating attributes in XHTML rendering, attackers can inject malicious code through invalid attribute names, enabling them to execute JavaScript code within a user session.
Mitigation and Prevention
This section outlines steps to mitigate and prevent exploitation of CVE-2023-37908.
Immediate Steps to Take
Users are advised to upgrade to XWiki versions 14.10.4 and 15.0 RC1, which address the vulnerability by removing disallowed characters in data attributes and validating cleaned attributes.
Long-Term Security Practices
Implement regular security updates and patches to stay protected against known vulnerabilities like CVE-2023-37908.
Patching and Updates
Stay informed about security advisories and apply patches promptly to safeguard your systems from potential exploits.