CVE-2023-30493 : Security Advisory and Response

WordPress Ultimate Addons for Contact Form 7 Plugin <= 3.2.0 is vulnerable to Cross Site Scripting (XSS).

Understanding CVE-2023-30493

This CVE identifies an Unauthenticated Reflected Cross-Site Scripting (XSS) vulnerability in the Themefic Ultimate Addons for Contact Form 7 plugin affecting versions up to 3.2.0.

What is CVE-2023-30493?

The CVE-2023-30493 describes a security flaw in the Themefic Ultimate Addons for Contact Form 7 plugin that allows attackers to execute malicious scripts on the victim's browser through crafted URLs leading to potential data theft or account compromise.

The Impact of CVE-2023-30493

The impact of this vulnerability is rated as HIGH with a CVSS base score of 7.1. Exploiting this vulnerability can lead to unauthorized access, exposure of sensitive information, and potential manipulation of user data on affected systems.

Technical Details of CVE-2023-30493

This section delves into specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability lies in the Themefic Ultimate Addons for Contact Form 7 plugin up to version 3.2.0, enabling Unauthenticated Reflected Cross-Site Scripting (XSS) attacks, allowing threat actors to inject and execute malicious scripts remotely.

Affected Systems and Versions

The affected product is the Ultimate Addons for Contact Form 7 plugin by Themefic with versions less than or equal to 3.2.0.

Exploitation Mechanism

Attackers can exploit this vulnerability by tricking users into visiting a malicious link containing the XSS payload or by luring users to click on a crafted URL, resulting in the execution of unauthorized scripts in their browsers.

Mitigation and Prevention

Protecting systems from CVE-2023-30493 requires immediate action and long-term security measures.

Immediate Steps to Take

It is recommended to update the Themefic Ultimate Addons for Contact Form 7 plugin to version 3.2.1 or a higher version as soon as possible to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing web application firewalls, regularly monitoring and auditing web traffic for suspicious activities, and educating users about safe browsing practices can help prevent XSS attacks and enhance overall security.

Patching and Updates

Ensure continuous monitoring for security updates and patches released by the plugin vendor to address known vulnerabilities and strengthen the security posture of the environment.