CVE-2021-25058 : Security Advisory and Response

The Buffer Button WordPress plugin version 1.0 and below was susceptible to Authenticated Stored Cross Site Scripting (XSS) in the Twitter username field.

Understanding CVE-2021-25058

This CVE refers to an Authenticated Stored Cross Site Scripting (XSS) vulnerability found in The Buffer Button WordPress plugin version 1.0 and below.

What is CVE-2021-25058?

The Buffer Button WordPress plugin version 1.0 and older is prone to an Authenticated Stored Cross Site Scripting (XSS) vulnerability in the Twitter username field. This security flaw allowed authenticated users to inject malicious scripts that could be executed within the application's context.

The Impact of CVE-2021-25058

Exploitation of this vulnerability could lead to unauthorized access, data theft, defacement, or other malicious activities on the affected WordPress websites using The Buffer Button plugin.

Technical Details of CVE-2021-25058

The following technical details provide a deeper insight into the vulnerability.

Vulnerability Description

The vulnerability in The Buffer Button WordPress plugin version 1.0 and below allowed authenticated users to inject malicious scripts via the Twitter username field, leading to potential XSS attacks.

Affected Systems and Versions

The Buffer Button WordPress plugin version 1.0 and older are affected by this CVE. Users using these versions are advised to take immediate action.

Exploitation Mechanism

By exploiting the Authenticated Stored Cross Site Scripting (XSS) vulnerability in the Twitter username field, attackers could inject and execute arbitrary scripts, compromising the security of the WordPress site.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-25058, users are recommended to take the following security measures.

Immediate Steps to Take

Update The Buffer Button WordPress plugin to the latest patched version to eliminate the vulnerability.
Conduct a security audit of the WordPress site to detect any signs of exploitation.

Long-Term Security Practices

Regularly monitor security advisories and updates for the plugins used in WordPress websites.
Educate users on best security practices to prevent XSS attacks and other security threats.

Patching and Updates

Always ensure that WordPress plugins are up to date with the latest security patches. Promptly apply any updates released by the plugin developers to protect the website from known vulnerabilities.