CVE-2024-3216 in WooCommerce PDF Invoices, Packing Slips, Delivery Notes and Shipping Labels Plugin
Summary
by MITRE • 04/06/2024
The WooCommerce PDF Invoices, Packing Slips, Delivery Notes and Shipping Labels plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the wt_pklist_reset_settings() function in all versions up to, and including, 4.4.2. This makes it possible for unauthenticated attackers to reset all of the plugin's settings.
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Analysis
by VulDB Data Team • 04/14/2026
The vulnerability identified as CVE-2024-3216 affects the WooCommerce PDF Invoices, Packing Slips, Delivery Notes and Shipping Labels plugin for WordPress, representing a critical security flaw that undermines the integrity of e-commerce operations. This issue stems from a fundamental design oversight in the plugin's permission handling mechanisms, specifically within the wt_pklist_reset_settings() function that lacks proper capability verification. The vulnerability exists across all versions up to and including 4.4.2, making it a widespread concern for WordPress administrators who rely on this popular plugin for their online store operations. The flaw allows unauthenticated attackers to exploit a critical function that resets all plugin configurations, potentially causing significant operational disruption and data loss for affected merchants.
The technical implementation of this vulnerability demonstrates a clear failure in access control enforcement, which aligns with CWE-284 Access Control Issues. The wt_pklist_reset_settings() function does not verify whether the requesting user possesses the necessary administrative privileges before executing the reset operation. This missing capability check creates an unauthorized access vector that bypasses WordPress's standard permission systems and allows any remote attacker to manipulate the plugin's configuration without authentication. The flaw essentially provides a backdoor mechanism that enables attackers to execute administrative functions through simple HTTP requests, making the exploitation process straightforward and accessible to threat actors with minimal technical expertise. This type of vulnerability represents a classic example of insufficient authorization checks that can lead to privilege escalation and unauthorized modification of critical system components.
The operational impact of CVE-2024-3216 extends beyond simple data corruption, as it can result in complete operational disruption for e-commerce businesses. When attackers reset the plugin settings, they can disable critical shipping and invoicing functionality, potentially causing orders to be processed incorrectly or not at all. This vulnerability can also lead to the exposure of sensitive customer information, as reset configurations might inadvertently remove security measures or logging capabilities. The attack surface is particularly concerning for businesses that rely heavily on automated order processing and customer communication systems, as the plugin's functionality may be completely compromised without any indication of unauthorized access. Additionally, the vulnerability can be exploited as part of broader attack campaigns targeting WordPress installations, where attackers may use this flaw to gain initial access to compromised systems before expanding their foothold.
Organizations affected by this vulnerability should implement immediate mitigations to protect their e-commerce operations and customer data integrity. The most effective immediate solution involves updating the WooCommerce PDF Invoices, Packing Slips, Delivery Notes and Shipping Labels plugin to version 4.4.3 or later, which contains the necessary capability checks to prevent unauthorized access. Administrators should also review their WordPress plugin management practices to ensure that all third-party components are regularly updated and monitored for security vulnerabilities. Network-level protections such as web application firewalls and rate limiting can provide additional defense-in-depth measures against exploitation attempts. From a threat intelligence perspective, this vulnerability maps to ATT&CK technique T1078 Valid Accounts, as it exploits the absence of proper access controls to gain administrative capabilities within the plugin's scope. Security teams should also consider implementing automated monitoring for unauthorized configuration changes and establish incident response procedures specifically tailored to address plugin-level security incidents that could impact e-commerce operations.