CVE-2022-4042 : Vulnerability Insights and Analysis

A Stored Cross-Site Scripting vulnerability has been discovered in the Paytium WordPress plugin, allowing high privilege users to execute attacks.

Understanding CVE-2022-4042

This CVE identifies a security issue in the Paytium: Mollie payment forms & donations WordPress plugin before version 4.3.7, enabling Stored Cross-Site Scripting attacks.

What is CVE-2022-4042?

The Paytium plugin, when running versions older than 4.3.7, fails to properly sanitize certain settings, permitting privileged users to execute Stored XSS attacks.

The Impact of CVE-2022-4042

This vulnerability could be exploited by admin-level users to inject malicious scripts into the plugin's settings, potentially leading to unauthorized actions.

Technical Details of CVE-2022-4042

Vulnerability Description

The Paytium plugin version < 4.3.7 does not adequately sanitize and escape certain settings, facilitating Stored XSS attacks even when unfiltered_html capability is disabled.

Affected Systems and Versions

Vendor: Unknown
Product: Paytium: Mollie payment forms & donations
Versions Affected: Custom version less than 4.3.7

Exploitation Mechanism

Admin users, despite being restricted by unfiltered_html capability, could exploit this vulnerability to execute malicious scripts within the plugin's settings.

Mitigation and Prevention

To safeguard your WordPress site against CVE-2022-4042, immediate action and long-term security practices are crucial.

Immediate Steps to Take

Update the Paytium plugin to version 4.3.7 or newer to mitigate the vulnerability.
Regularly audit and monitor plugin installations for security patches.

Long-Term Security Practices

Employ principle of least privilege for user roles to limit capabilities.
Educate users on secure coding practices to prevent XSS vulnerabilities.

Patching and Updates

Stay informed about plugin updates and security advisories to promptly apply patches that address known vulnerabilities.