CVE-2019-15321 Explained : Impact and Mitigation

WordPress option-tree plugin before version 2.7.3 is vulnerable to Object Injection due to mishandling of serialized classes.

Understanding CVE-2019-15321

This CVE identifies a security vulnerability in the WordPress option-tree plugin that could allow for Object Injection attacks.

What is CVE-2019-15321?

The option-tree plugin before version 2.7.3 for WordPress mishandles serialized classes, leading to Object Injection vulnerabilities.

The Impact of CVE-2019-15321

This vulnerability could be exploited by attackers to inject malicious objects into the application, potentially leading to unauthorized access or data manipulation.

Technical Details of CVE-2019-15321

The technical aspects of this CVE are as follows:

Vulnerability Description

The WordPress option-tree plugin before version 2.7.3 is susceptible to Object Injection due to its mishandling of serialized classes.

Affected Systems and Versions

Affected Product: WordPress option-tree plugin
Vulnerable Versions: Before 2.7.3

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious objects through the mishandling of serialized classes in the plugin.

Mitigation and Prevention

To address CVE-2019-15321, follow these mitigation steps:

Immediate Steps to Take

Update the option-tree plugin to version 2.7.3 or newer.
Monitor for any unauthorized access or unusual activities on the WordPress site.

Long-Term Security Practices

Regularly update all plugins and themes in WordPress to the latest versions.
Implement security best practices such as using strong passwords and limiting access to sensitive areas.

Patching and Updates

Stay informed about security updates for WordPress plugins and apply patches promptly to prevent exploitation of known vulnerabilities.