CVE-2021-42367 : Vulnerability Insights and Analysis

The Variation Swatches for WooCommerce WordPress plugin version 2.1.1 and below is vulnerable to Stored Cross-Site Scripting due to missing authorization checks. This can be exploited by low-level authenticated users. Update to version 2.1.2 or newer.

Understanding CVE-2021-42367

The CVE-2021-42367 vulnerability in Variation Swatches for WooCommerce plugin allows for Stored Cross-Site Scripting attacks, impacting versions up to 2.1.1.

What is CVE-2021-42367?

The CVE-2021-42367 vulnerability in Variation Swatches for WooCommerce plugin enables attackers to inject arbitrary web scripts due to missing authorization checks, potentially leading to unauthorized actions by low-level authenticated users.

The Impact of CVE-2021-42367

CVSS Base Score: 6.4 (Medium severity)
Attack Vector: Network
Scope: Changed (Attacker can modify the data)
Privileges Required: Low
User Interaction: None

Technical Details of CVE-2021-42367

The following are technical details of the CVE-2021-42367 vulnerability.

Vulnerability Description

The vulnerability allows for Stored Cross-Site Scripting through specific parameters in the ~/includes/class-menu-page.php file, enabling the injection of arbitrary web scripts.

Affected Systems and Versions

Affected Versions: up to and including 2.1.1

Exploitation Mechanism

Due to missing authorization checks on the tawcvs_save_settings function, low-level authenticated users such as subscribers can exploit this vulnerability.

Mitigation and Prevention

It is crucial to take immediate actions to address the CVE-2021-42367 vulnerability.

Immediate Steps to Take

Update the plugin to version 2.1.2 or newer to mitigate the vulnerability.

Long-Term Security Practices

Regularly audit and review your plugins and keep them updated to address security issues promptly.
Implement least privilege access controls to limit the impact of vulnerabilities.
Educate users on the importance of keeping software up to date.

Patching and Updates

Stay informed about plugin updates and security advisories to apply patches promptly.