CVE-2021-36910 : What You Need to Know

WordPress WP-Appbox plugin version <= 4.3.20 has been identified with an Authenticated Stored Cross-Site Scripting (XSS) vulnerability. Here are the details you need to be aware of.

Understanding CVE-2021-36910

This section will provide insights into the nature and impact of the vulnerability.

What is CVE-2021-36910?

The CVE-2021-36910 vulnerability involves an Authenticated Stored Cross-Site Scripting (XSS) issue in the WP-Appbox WordPress plugin version <= 4.3.20. This vulnerability allows admin users to inject malicious scripts that are stored on the server and executed when accessed by other users.

The Impact of CVE-2021-36910

With a CVSS base score of 3.4, this XSS vulnerability can be exploited by attackers with high privileges to potentially execute arbitrary code within the web application context. The integrity of the affected system may be compromised, leading to unauthorized actions.

Technical Details of CVE-2021-36910

This section will outline the specifics of the vulnerability.

Vulnerability Description

The vulnerability stems from improper input validation, allowing attackers to craft malicious scripts that can be stored in the application's database and executed in the browser of other users.

Affected Systems and Versions

The WordPress WP-Appbox plugin version <= 4.3.20 is susceptible to this Authenticated Stored XSS vulnerability. Users with admin privileges are particularly at risk.

Exploitation Mechanism

Attackers with a high level of privileges, such as admin roles, can exploit this vulnerability by injecting malicious scripts through the affected plugin, which are then executed when viewed by other users.

Mitigation and Prevention

To safeguard your systems, follow these security measures.

Immediate Steps to Take

Update the WP-Appbox plugin to the latest version to patch the vulnerability.
Restrict admin privileges to trusted users to minimize the risk of exploitation.

Long-Term Security Practices

Regularly monitor security advisories for the WP-Appbox plugin to stay informed of any new vulnerabilities.
Implement security best practices such as input validation and output encoding to mitigate XSS risks.

Patching and Updates

Stay proactive in applying security patches and updates provided by the plugin vendor to address known vulnerabilities and enhance system security.