CVE-2023-32070 : What You Need to Know
Learn about CVE-2023-32070, a critical XSS vulnerability in XWiki-Rendering allowing attackers to execute malicious scripts. Find out the impacted versions and how to mitigate risks.
XWiki Platform is a generic wiki platform. Prior to version 14.6-rc-1, HTML rendering didn't check for dangerous attributes/attribute values. This allowed cross-site scripting (XSS) attacks via attributes and link URLs, e.g., supported in XWiki syntax. This has been patched in XWiki 14.6-rc-1. There are no known workarounds apart from upgrading to a fixed version.
Understanding CVE-2023-32070
This CVE relates to the improper neutralization of script in attributes in XWiki (X)HTML renderers, posing a critical security threat.
What is CVE-2023-32070?
CVE-2023-32070 highlights a vulnerability in XWiki-rendering where HTML rendering lacked attribute/value validation, leaving it open to XSS attacks through manipulated attributes and links.
The Impact of CVE-2023-32070
The vulnerability allows malicious actors to execute arbitrary scripts within a victim's browser, potentially leading to sensitive data theft, session hijacking, and other serious consequences.
Technical Details of CVE-2023-32070
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The flaw in XWiki-rendering allowed attackers to inject and execute malicious scripts through unvalidated attributes and URLs, exploiting the lack of input sanitization.
Affected Systems and Versions
XWiki versions below 14.6-rc-1 and <= 3.0-milestone-2 are impacted, making systems running these versions vulnerable to XSS attacks.
Exploitation Mechanism
Attackers could exploit this vulnerability by injecting malicious scripts through attributes or URLs in XWiki-rendered content, potentially compromising user data and system security.
Mitigation and Prevention
It is crucial to take immediate actions to mitigate the risks associated with CVE-2023-32070.
Immediate Steps to Take
- Update XWiki to version 14.6-rc-1 or higher to patch the vulnerability and prevent XSS attacks.
- Restrict user input and sanitize all attributes and URLs to prevent script injection.
Long-Term Security Practices
- Regularly update and patch software to ensure protection against known vulnerabilities.
- Implement input validation and output encoding to enhance security.
Patching and Updates
Stay informed about security updates and patches released by XWiki to address vulnerabilities and strengthen system security.