CVE-2021-36832 : Vulnerability Insights and Analysis

WordPress Icegram plugin version 2.0.2 and below is affected by an Authenticated Stored Cross-Site Scripting (XSS) vulnerability. This CVE was published on August 17, 2021, by the Patchstack team after being discovered externally by Asif Nawaz Minhas.

Understanding CVE-2021-36832

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

What is CVE-2021-36832?

The vulnerability exists in the 'Headline' input of the WordPress Popups, Welcome Bar, Optins and Lead Generation Plugin – Icegram versions up to 2.0.2, allowing for Cross-Site Scripting attacks.

The Impact of CVE-2021-36832

With a CVSSv3.1 base score of 4.8, this vulnerability has a Medium severity level. It requires high privileges for exploitation and user interaction is mandatory. While it does not directly impact availability, it poses risks to confidentiality and integrity.

Technical Details of CVE-2021-36832

Let's delve into the specifics of this vulnerability.

Vulnerability Description

The CWE-79 vulnerability enables attackers to inject malicious scripts into the 'Headline' input of the Icegram plugin, potentially leading to XSS attacks.

Affected Systems and Versions

The issue affects versions of the Icegram plugin equal to or below 2.0.2.

Exploitation Mechanism

By exploiting the vulnerability in the 'Headline' input, attackers can inject and execute malicious scripts within the plugin's functionalities.

Mitigation and Prevention

To safeguard your system from CVE-2021-36832, consider the following measures.

Immediate Steps to Take

Users are advised to update their Icegram plugin to version 2.0.3 or higher to mitigate the XSS vulnerability.

Long-Term Security Practices

Regularly update all WordPress plugins and themes to ensure vulnerabilities are patched promptly.

Patching and Updates

Stay informed about security updates released by Icegram and apply patches promptly to protect your website from potential exploits.