CVE-2022-1593 : Security Advisory and Response

WordPress plugin Site Offline or Coming Soon <= 1.6.6 is vulnerable to Stored Cross-Site Scripting via CSRF, allowing attackers to insert malicious scripts.

Understanding CVE-2022-1593

This CVE affects the WordPress plugin Site Offline or Coming Soon version 1.6.6 and earlier, exposing sites to Cross-Site Scripting attacks.

What is CVE-2022-1593?

The Site Offline or Coming Soon WordPress plugin through version 1.6.6 lacks CSRF checks during settings updates, making it susceptible to Cross-Site Scripting attacks.

The Impact of CVE-2022-1593

Attackers can exploit this vulnerability to manipulate settings and inject Cross-Site Scripting payloads, posing a risk of executing malicious scripts on the targeted site.

Technical Details of CVE-2022-1593

This CVE is classified as CWE-79 - Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) and was discovered externally.

Vulnerability Description

The vulnerability arises due to the absence of proper CSRF validation and input sanitization, enabling attackers to execute XSS payloads through authenticated admin users.

Affected Systems and Versions

WordPress plugin Site Offline or Coming Soon versions less than or equal to 1.6.6 are impacted by this vulnerability.

Exploitation Mechanism

By exploiting the lack of CSRF protection, threat actors can forge requests to modify plugin settings, embedding malicious scripts into the site content.

Mitigation and Prevention

To secure your site against CVE-2022-1593, immediate action and long-term security practices are essential.

Immediate Steps to Take

Update the Site Offline or Coming Soon plugin to the latest version to patch the vulnerability.
Implement strict input validation and output escaping mechanisms within the plugin to mitigate XSS risks.

Long-Term Security Practices

Regularly monitor and audit WordPress plugins for security vulnerabilities.
Educate administrators about the importance of validating user inputs to prevent code injection attacks.

Patching and Updates

Stay informed about security advisories related to WordPress plugins and promptly apply patches to address known vulnerabilities.