CVE-2021-24343 : Security Advisory and Response

iFlyChat – WordPress Chat plugin before version 4.7.0 is vulnerable to an authenticated Stored Cross-Site Scripting issue due to improper sanitization of the APP ID setting. Let's dive into the details of this CVE.

Understanding CVE-2021-24343

This section will provide insights into what CVE-2021-24343 is all about.

What is CVE-2021-24343?

The iFlyChat WordPress plugin before version 4.7.0 fails to sanitize its APP ID setting, allowing attackers to execute malicious scripts in the context of an authenticated user's session, leading to a Stored Cross-Site Scripting vulnerability.

The Impact of CVE-2021-24343

This vulnerability could be exploited by authenticated attackers to inject arbitrary HTML or JavaScript code, potentially compromising user data, stealing sensitive information, or performing actions on behalf of a user.

Technical Details of CVE-2021-24343

Let's explore the technical aspects of CVE-2021-24343 in more detail.

Vulnerability Description

The vulnerability arises from the lack of input validation in the APP ID setting, which allows attackers to craft malicious payloads leading to Stored Cross-Site Scripting attacks.

Affected Systems and Versions

The iFlyChat WordPress Chat plugin versions prior to 4.7.0 are impacted by this vulnerability, with version 4.7.0 and below being susceptible to exploitation.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the APP ID parameter to inject malicious scripts that get executed in the context of the target user, enabling various malicious activities.

Mitigation and Prevention

Discover the steps to mitigate and prevent the exploitation of CVE-2021-24343.

Immediate Steps to Take

Users are advised to update the iFlyChat – WordPress Chat plugin to version 4.7.0 or above to prevent exploitation of this vulnerability. Additionally, monitor for any suspicious activities on the platform.

Long-Term Security Practices

Implement secure coding practices, routine security audits, and user input validation to prevent similar vulnerabilities in the future.

Patching and Updates

Regularly apply security patches and updates provided by the plugin vendor to ensure that known vulnerabilities are fixed promptly and the system remains secure.