CVE-2024-12210 is a vulnerability identified in the Print Invoice & Delivery Notes for WooCommerce plugin for WordPress, affecting all versions up to and including 5.4.0. The vulnerability stems from a missing authorization check on the AJAX action 'wcdn_remove_shoplogo', which is intended to allow removal of the shop's logo. Due to the absence of proper capability verification, any authenticated user with Subscriber-level permissions or higher can invoke this AJAX endpoint to remove the shop logo without additional privileges. This represents a CWE-862 (Missing Authorization) weakness. The vulnerability has a CVSS 3.1 base score of 4.3 (medium severity), with attack vector network (remote), low attack complexity, requiring privileges (authenticated user), no user interaction, and an impact limited to integrity (modification of data) without affecting confidentiality or availability. The flaw could be exploited by malicious users to alter the shop's branding, potentially facilitating social engineering or phishing attacks by undermining customer trust. Although no public exploits are known, the vulnerability is present in a widely used e-commerce plugin, making it a relevant concern for many WordPress sites. The issue highlights the importance of enforcing capability checks on all AJAX actions to prevent unauthorized modifications by low-privilege users.

The primary impact of this vulnerability is the unauthorized modification of the shop's logo, which affects the integrity of the e-commerce site’s branding. While it does not compromise confidentiality or availability, altering the shop logo can erode customer trust, potentially enabling phishing or fraud schemes that impersonate the legitimate store. Attackers with Subscriber-level access, which is commonly granted to registered users or customers, can exploit this flaw remotely without user interaction, increasing the risk of exploitation in multi-user environments. For organizations relying on WooCommerce for online sales, this could lead to reputational damage and loss of customer confidence. However, since the vulnerability requires authenticated access, the risk is somewhat mitigated in environments with strict user registration and monitoring policies. There is no evidence of widespread exploitation, but the vulnerability remains a concern for any WooCommerce installation using the affected plugin version.

To mitigate this vulnerability, organizations should immediately update the Print Invoice & Delivery Notes for WooCommerce plugin to a version that includes the proper authorization checks once available. In the absence of an official patch, administrators can implement the following specific measures: 1) Restrict user roles to the minimum necessary privileges, avoiding granting Subscriber-level or higher access to untrusted users. 2) Use WordPress security plugins or custom code to enforce capability checks on AJAX actions, particularly 'wcdn_remove_shoplogo', by hooking into WordPress AJAX handlers and validating user permissions. 3) Monitor logs for suspicious AJAX requests targeting this action to detect potential exploitation attempts. 4) Consider temporarily disabling the plugin or the specific AJAX functionality if feasible until a patch is released. 5) Educate site administrators and users about the risks of unauthorized changes to branding elements and encourage vigilance for unexpected site appearance changes. These targeted steps go beyond generic advice by focusing on controlling access to the vulnerable AJAX endpoint and monitoring for exploitation.