CVE-2021-42364 : Exploit Details and Defense Strategies

The Stetic WordPress plugin is vulnerable to Cross-Site Request Forgery and Stored Cross-Site Scripting due to missing nonce validation, potentially allowing attackers to inject arbitrary web scripts.

Understanding CVE-2021-42364

The vulnerability in the Stetic WordPress plugin exposes websites to Cross-Site Request Forgery attacks, leading to potential script injections.

What is CVE-2021-42364?

The Stetic WordPress plugin versions up to and including 1.0.6 are susceptible to Cross-Site Request Forgery due to the absence of nonce validation in the stats_page function.

The Impact of CVE-2021-42364

This vulnerability has a high impact on confidentiality, integrity, and availability, with a CVSS base score of 8.8.

Technical Details of CVE-2021-42364

The following technical aspects detail the vulnerability and affected systems.

Vulnerability Description

Missing nonce validation in the stats_page function of the Stetic plugin
Allows attackers to perform Cross-Site Request Forgery
Enables injection of arbitrary web scripts

Affected Systems and Versions

Product: Stetic
Vendor: Stetic
Versions Affected: <= 1.0.6

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Scope: Unchanged

Mitigation and Prevention

Steps to address and prevent exploitation of the CVE-2021-42364 vulnerability.

Immediate Steps to Take

Uninstall the Stetic plugin from the WordPress site

Long-Term Security Practices

Regularly update plugins and software
Implement proper input validation and security mechanisms
Monitor and audit web traffic for suspicious activity

Patching and Updates

Keep WordPress plugins and themes updated to the latest secure versions