CVE-2021-24991 Explained : Impact and Mitigation

WordPress plugin 'WooCommerce PDF Invoices & Packing Slips' before version 2.10.5 is susceptible to a Reflected Cross-Site Scripting (XSS) vulnerability due to improper handling of parameters in attributes.

Understanding CVE-2021-24991

This vulnerability in WooCommerce PDF Invoices & Packing Slips plugin can be exploited to launch XSS attacks in the admin dashboard.

What is CVE-2021-24991?

The CVE-2021-24991 vulnerability exists in WooCommerce PDF Invoices & Packing Slips plugin before 2.10.5, enabling attackers to execute malicious scripts in the context of an admin user.

The Impact of CVE-2021-24991

The vulnerability allows for potential XSS attacks, putting sensitive data at risk within the affected WordPress websites running the outdated plugin.

Technical Details of CVE-2021-24991

The technical details of this CVE include:

Vulnerability Description

The vulnerability arises from the lack of proper escaping of tab and section parameters, leading to the injection of malicious scripts.

Affected Systems and Versions

Product: WooCommerce PDF Invoices & Packing Slips
Vendor: Unknown
Versions Affected: < 2.10.5

Exploitation Mechanism

Attackers can craft links containing malicious code that, when clicked by an admin user, gets executed within the dashboard, potentially compromising data.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-24991, follow these steps:

Immediate Steps to Take

Update the WooCommerce PDF Invoices & Packing Slips plugin to version 2.10.5 or higher.
Monitor for any suspicious activities on the admin dashboard.

Long-Term Security Practices

Regularly update plugins and themes to their latest versions.
Employ web application firewalls to filter out malicious traffic.

Patching and Updates

Stay informed about security advisories and apply patches promptly to prevent exploitation of known vulnerabilities.