CVE-2021-34643 : Security Advisory and Response

Skaut bazar plugin version 1.3.2 and below for WordPress is vulnerable to Reflected Cross-Site Scripting, allowing attackers to inject arbitrary web scripts.

Understanding CVE-2021-34643

This CVE identifies a security vulnerability in the Skaut Bazar WordPress plugin that could be exploited by attackers to perform Reflected Cross-Site Scripting (XSS) attacks.

What is CVE-2021-34643?

The Skaut Bazar WordPress plugin versions up to and including 1.3.2 are susceptible to Reflected Cross-Site Scripting due to the improper use of $_SERVER['PHP_SELF'] in the ~/skaut-bazar.php file.

The Impact of CVE-2021-34643

This vulnerability allows malicious actors to insert and execute arbitrary web scripts, potentially leading to unauthorized actions, data theft, or further compromise.

Technical Details of CVE-2021-34643

The details of this CVE are as follows:

Vulnerability Description

The issue arises from the plugin's use of $_SERVER['PHP_SELF'], enabling attackers to inject malicious scripts that are then reflected back to users.

Affected Systems and Versions

Skaut Bazar versions 1.3.2 and below are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating input fields to inject malicious scripts that are later executed in the context of other users.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-34643, the following steps are recommended:

Immediate Steps to Take

Uninstall the Skaut Bazar WordPress plugin immediately to prevent further exposure to XSS attacks.

Long-Term Security Practices

Regularly update your plugins and software to ensure you are protected from known vulnerabilities.

Patching and Updates

Stay informed about security advisories and apply patches promptly to address vulnerabilities and enhance your system's security.