CVE-2021-24283 : Security Advisory and Response

This article provides an overview of CVE-2021-24283, a vulnerability in the Accordion plugin developed by PickPlugins.

Understanding CVE-2021-24283

CVE-2021-24283 is an Authenticated Reflected Cross-Site Scripting (XSS) vulnerability in versions prior to 2.2.30 of the Accordion plugin.

What is CVE-2021-24283?

The vulnerability arises from the tab GET parameter on the settings page not properly sanitized or escaped, allowing for a reflected XSS attack.

The Impact of CVE-2021-24283

An attacker could exploit this vulnerability to inject malicious scripts into the HTML output of the affected page, potentially leading to unauthorized actions by authenticated users.

Technical Details of CVE-2021-24283

The technical details of CVE-2021-24283 include:

Vulnerability Description

The tab GET parameter in the settings page is vulnerable to reflected XSS due to lack of proper input validation.

Affected Systems and Versions

Versions prior to 2.2.30 of the Accordion plugin by PickPlugins are affected by this vulnerability.

Exploitation Mechanism

Attackers can craft a malicious URL with the tab parameter to execute arbitrary scripts in the context of an authenticated user.

Mitigation and Prevention

To address CVE-2021-24283, follow these steps:

Immediate Steps to Take

Update the Accordion plugin to version 2.2.30 or above.
Regularly monitor for any unusual activities on the affected pages.

Long-Term Security Practices

Implement input validation and output encoding to prevent XSS vulnerabilities.
Educate users on the risks of clicking on suspicious links.

Patching and Updates

Stay informed about security patches released by PickPlugins and apply them promptly to mitigate the risk of XSS attacks.