CVE-2020-11028 : Security Advisory and Response

In affected versions of WordPress, some private posts, which were previously public, can result in unauthenticated disclosure under specific conditions. This has been patched in version 5.4.1, along with all previously affected versions.

Understanding CVE-2020-11028

In this CVE, a vulnerability in WordPress could lead to the disclosure of private posts without authentication.

What is CVE-2020-11028?

CVE-2020-11028 is a security vulnerability in WordPress that allows unauthenticated disclosure of certain private posts under specific conditions.

The Impact of CVE-2020-11028

The vulnerability has a CVSS base score of 5.8, with medium severity. It requires low privileges and user interaction but has a high impact on confidentiality.

Technical Details of CVE-2020-11028

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in WordPress allows private posts to be disclosed without authentication under specific conditions.

Affected Systems and Versions

WordPress versions >= 5.4.0, < 5.4.1
Versions 5.3.0 to 5.3.3
Versions 5.2.0 to 5.2.6
Versions 5.1.0 to 5.1.5
Versions 5.0.0 to 5.0.9
Versions 4.9.0 to 4.9.14
Versions 4.8.0 to 4.8.13
Versions 4.7.0 to 4.7.17
Versions 4.6.0 to 4.6.18
Versions 4.5.0 to 4.5.21
Versions 4.4.0 to 4.4.22
Versions 4.3.0 to 4.3.23
Versions 4.2.0 to 4.2.27
Versions 4.1.0 to 4.1.30
Versions 4.0.0 to 4.0.30
Versions 3.9.0 to 3.9.31
Versions 3.8.0 to 3.8.33
Versions 3.7.0 to 3.7.33

Exploitation Mechanism

The vulnerability can be exploited by an attacker under specific conditions to access private posts without authentication.

Mitigation and Prevention

To address CVE-2020-11028, follow these mitigation steps:

Immediate Steps to Take

Update WordPress to version 5.4.1 or the latest release.
Monitor for any unauthorized access to private posts.

Long-Term Security Practices

Regularly update WordPress and plugins to the latest versions.
Implement strong authentication mechanisms.

Patching and Updates

Apply security patches promptly.