WordPress WooCommerce PDF Invoices & Packing Slips Cross-Site Scripting Scanner

The WordPress WooCommerce PDF Invoices & Packing Slips plugin is widely used by e-commerce websites operating on the WordPress platform. This plugin facilitates the automatic generation of professional PDF invoices and packing slips for WooCommerce orders. Typically employed by online retailers, it ensures that customers receive necessary documents instantly upon order completion. Offering customization options, the plugin supports various languages and currencies, making it versatile for an international user base. Many e-commerce businesses rely on this plugin for seamless transactions and maintaining accurate order records. It is often preferred for its ease of integration with existing WooCommerce setups.

Cross-Site Scripting (XSS) is a vulnerability type that allows an attacker to inject malicious scripts into web pages viewed by other users. The vulnerability in question entails improper escaping of URLs in attributes, which enables reflected XSS attacks. This flaw arises when web applications include untrusted data in a web page without proper validation and escaping. Specifically, the plugin version less than 2.15.0 is affected, and this can lead to unauthorized access or data theft from users' sessions. XSS vulnerabilities are critical because they can be exploited to manipulate or steal data. This vulnerability may compromise the privacy and security of user interactions.

The technical specifics of the XSS vulnerability in the WooCommerce PDF Invoices & Packing Slips plugin involve unescaped URLs being inserted into HTML attributes. The vulnerable endpoint detects script injection attempts via manipulation of parameters that are output onto pages without proper sanitization. The exploitation often involves injecting scripts that execute in the context of the user's browser, potentially exposing cookies and session identifiers. Attack vectors typically utilize specially crafted URLs that include malicious scripts. The vulnerable parameter is associated with user input that is mishandled by the application before being rendered in the output. Corrective measures include updating to newer plugin versions where this flaw is rectified.

When exploited by malicious actors, this XSS vulnerability can lead to several detrimental effects. Attackers may gain unauthorized access to user accounts on the affected website by stealing session cookies. This could result in data breaches and unauthorized transactions on e-commerce platforms. Additionally, exploited vulnerabilities may allow attackers to deface websites or redirect users to malicious sites. Such exploits undermine user trust and harm the reputation of the affected business or website. For businesses relying on e-commerce, the financial and reputational damages of an XSS attack could be significant. Consequently, resolving this issue swiftly is essential in maintaining secure operations.

REFERENCES

• https://wpscan.com/vulnerability/bc05dde0-98a2-46e3-b2c8-7bdc8c32394b
• https://wordpress.org/plugins/woocommerce-pdf-invoices-packing-slips/