CVE-2023-34466 Explained : Impact and Mitigation
Learn about CVE-2023-34466 where XWiki Platform inadvertently reveals tags from non-viewable pages, posing a risk of exposing sensitive information. Find out the impact, affected versions, and mitigation steps.
XWiki Platform's tags on non-viewable pages can be revealed to users due to a vulnerability in versions prior to 14.4.8, 14.10.4, and 15.0-rc-1.
Understanding CVE-2023-34466
This vulnerability, identified as 'Exposure of Sensitive Information to an Unauthorized Actor', allows tags from pages not viewable to the current user to be leaked by the tags API in XWiki Platform.
What is CVE-2023-34466?
XWiki Platform, a generic wiki platform, inadvertently leaks tags from non-viewable pages, potentially allowing users to access sensitive information they shouldn't have permissions to view.
The Impact of CVE-2023-34466
The exposure of this sensitive information could lead to unauthorized users accessing confidential data, compromising the platform's integrity.
Technical Details of CVE-2023-34466
The vulnerability affects XWiki Platform versions starting from 5.0-milestone-1 up to versions 14.4.8, 14.10.4, and 15.0-rc-1. It has a CVSS base score of 4.3 (Medium severity).
Vulnerability Description
The tags API in XWiki Platform unintentionally reveals tags from non-viewable pages, potentially allowing users to infer the document reference of those pages.
Affected Systems and Versions
XWiki Platform versions >= 5.0-milestone-1 and < 14.4.8, as well as >= 14.5 and < 14.10.4, are affected by this vulnerability.
Exploitation Mechanism
Unauthorized users can exploit this vulnerability to access tags from pages they do not have permission to view, compromising data confidentiality.
Mitigation and Prevention
To address CVE-2023-34466, immediate steps should be taken to patch the affected versions and implement long-term security practices.
Immediate Steps to Take
Users are advised to update to the patched versions, specifically XWiki 14.4.8, 14.10.4, or 15.0-rc-1, to prevent further exposure of sensitive information.
Long-Term Security Practices
Implement access controls and regularly update XWiki Platform to stay protected against similar vulnerabilities.
Patching and Updates
Ensure timely installation of security patches and updates to mitigate the risk of data exposure in XWiki Platform.