CVE-2019-11871 Explained : Impact and Mitigation

Editors or admins using the Custom Field Suite plugin before version 2.5.15 for WordPress are vulnerable to cross-site scripting (XSS) attacks.

Understanding CVE-2019-11871

The Custom Field Suite plugin for WordPress versions prior to 2.5.15 is susceptible to XSS attacks, potentially impacting editors and admins.

What is CVE-2019-11871?

The CVE-2019-11871 vulnerability refers to a cross-site scripting (XSS) issue in the Custom Field Suite plugin for WordPress, allowing attackers to execute malicious scripts on the affected site.

The Impact of CVE-2019-11871

This vulnerability can be exploited by attackers to inject malicious scripts into the plugin, leading to potential unauthorized access, data theft, defacement, and other security risks for websites using the vulnerable versions.

Technical Details of CVE-2019-11871

The technical details of CVE-2019-11871 provide insights into the vulnerability's description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The Custom Field Suite plugin before version 2.5.15 for WordPress is prone to cross-site scripting (XSS) attacks, posing a security risk to editors and admins utilizing the plugin.

Affected Systems and Versions

Product: Custom Field Suite plugin
Vendor: N/A
Versions Affected: < 2.5.15

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts through the plugin, potentially compromising the security of WordPress sites.

Mitigation and Prevention

Protecting systems from CVE-2019-11871 involves immediate steps and long-term security practices to mitigate risks and ensure ongoing protection.

Immediate Steps to Take

Update the Custom Field Suite plugin to version 2.5.15 or newer to patch the vulnerability.
Monitor website activity for any signs of unauthorized access or malicious behavior.

Long-Term Security Practices

Regularly update plugins and themes to the latest versions to address security vulnerabilities.
Implement web application firewalls and security plugins to enhance website security.

Patching and Updates

Stay informed about security updates and patches released by the plugin developer to address vulnerabilities and enhance website security.