CVE-2023-29140 : What You Need to Know

An issue was discovered in the GrowthExperiments extension for MediaWiki through 1.39.3, allowing attackers to view edits even if the username has been hidden due to the absence of a rev_deleted check.

Understanding CVE-2023-29140

This section provides an overview of the vulnerability and its impact.

What is CVE-2023-29140?

CVE-2023-29140 is a security issue found in the GrowthExperiments extension for MediaWiki versions up to 1.39.3. It enables attackers to view edits even when the username has been concealed.

The Impact of CVE-2023-29140

The vulnerability could lead to a loss of privacy and confidentiality as attackers may access edits without proper authorization.

Technical Details of CVE-2023-29140

Explore the specifics of the vulnerability in this section.

Vulnerability Description

The flaw arises from the lack of a rev_deleted check in the GrowthExperiments extension for MediaWiki, potentially exposing hidden usernames.

Affected Systems and Versions

All versions of the GrowthExperiments extension for MediaWiki up to 1.39.3 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this issue by leveraging the absence of the rev_deleted verification, enabling them to view edits with hidden usernames.

Mitigation and Prevention

Learn about the necessary steps to mitigate and prevent the exploitation of CVE-2023-29140.

Immediate Steps to Take

Users should update to the latest version of the GrowthExperiments extension promptly to address this vulnerability.

Long-Term Security Practices

Implementing strict access controls and regularly monitoring edits can enhance security and prevent unauthorized access.

Patching and Updates

Stay informed about security updates for MediaWiki and its extensions to ensure protection against known vulnerabilities.