CVE-2023-45364 : Exploit Details and Defense Strategies

An issue in MediaWiki versions 1.36.x through 1.39.x before 1.39.5 and 1.40.x before 1.40.1 exposes deleted revision existence due to incorrect permissions, leaking sensitive information.

Understanding CVE-2023-45364

This CVE identifies a vulnerability in MediaWiki that exposes private information through incorrect permission checks.

What is CVE-2023-45364?

The issue in MediaWiki allows deleted revision existence to be leaked, exposing revision IDs and timestamps that are not meant to be public.

The Impact of CVE-2023-45364

This vulnerability could lead to unauthorized access to sensitive information, compromising user privacy and data security.

Technical Details of CVE-2023-45364

Learn more about the specific technical aspects of the vulnerability.

Vulnerability Description

Deleted revision existence is leaked due to incorrect permissions, revealing revision IDs and timestamps.

Affected Systems and Versions

All MediaWiki versions between 1.36.x through 1.39.x before 1.39.5 and 1.40.x before 1.40.1 are affected by this issue.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the leaked information to access unauthorized data.

Mitigation and Prevention

Discover how to address and prevent the CVE-2023-45364 vulnerability.

Immediate Steps to Take

Update MediaWiki to version 1.39.5 or 1.40.1 to mitigate the risk of deleted revision exposure.

Long-Term Security Practices

Implement strict access controls and regularly monitor and audit permissions to prevent unauthorized data leaks.

Patching and Updates

Stay informed about security updates and promptly apply patches to maintain a secure MediaWiki installation.