CVE-2021-39310 : What You Need to Know

This CVE-2021-39310 article provides details about a vulnerability in the Real WYSIWYG WordPress plugin that allows Reflected Cross-Site Scripting.

Understanding CVE-2021-39310

CVE-2021-39310 is a vulnerability in the Real WYSIWYG plugin up to version 0.0.2, allowing attackers to inject arbitrary web scripts.

What is CVE-2021-39310?

The Real WYSIWYG WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of PHP_SELF in the ~/real-wysiwyg.php file.

The Impact of CVE-2021-39310

This vulnerability has a CVSS base score of 6.1, categorized as MEDIUM severity, affecting confidentiality, integrity, and user interaction.

Technical Details of CVE-2021-39310

This section covers specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in Real WYSIWYG plugin allows attackers to perform Reflected Cross-Site Scripting through PHP_SELF, affecting versions up to 0.0.2.

Affected Systems and Versions

Product: Real WYSIWYG
Vendor: Real WYSIWYG
Versions affected: 0.0.2

Exploitation Mechanism

Attack Complexity: LOW
Attack Vector: NETWORK
Privileges Required: NONE
User Interaction: REQUIRED
Scope: CHANGED
Exploitation Impact: Allows injection of arbitrary web scripts

Mitigation and Prevention

Protecting systems from the CVE-2021-39310 vulnerability involves taking proactive security measures.

Immediate Steps to Take

Uninstall the Real WYSIWYG plugin from WordPress sites immediately.

Long-Term Security Practices

Regularly monitor for security advisories from plugin vendors.
Implement security tools and plugins to scan for vulnerabilities.

Patching and Updates

Ensure the plugin is up to date with the latest patches and security fixes.