CVE-2026-25456 identifies a missing authorization vulnerability within the Aarsiv Groups Automated FedEx live/manual rates with shipping labels plugin, specifically versions up to 5.1.8. The vulnerability arises from incorrectly configured access control security levels, allowing unauthorized users to bypass authorization checks. This plugin integrates FedEx shipping rate calculations and label generation into e-commerce or logistics platforms, automating live and manual rate retrieval and label creation. Due to missing authorization, attackers can potentially access or manipulate shipping rates and labels without proper permissions. This could lead to unauthorized disclosure of shipping data, fraudulent label creation, or manipulation of shipping costs. The vulnerability does not require authentication or user interaction, making it easier to exploit remotely. Although no public exploits have been reported yet, the flaw poses a significant risk to organizations relying on this plugin for shipping automation. The lack of a CVSS score indicates the need for a severity assessment based on impact and exploitability factors. The issue was reserved in early 2026 and published in March 2026, with no patches currently linked, emphasizing the need for vendor response and mitigation.

The vulnerability could have serious implications for organizations using the affected plugin, especially those heavily reliant on automated FedEx shipping integrations. Unauthorized access to shipping rates and label generation functions could lead to financial losses through fraudulent shipments or manipulated shipping costs. Confidential shipping information, including customer addresses and shipment details, may be exposed, risking privacy violations and compliance issues. Integrity of shipping data could be compromised, affecting order fulfillment and logistics accuracy. Availability impact is limited but could arise if attackers disrupt shipping processes. The ease of exploitation without authentication increases the threat level, potentially allowing widespread abuse. This could damage organizational reputation, incur financial penalties, and disrupt supply chain operations. The absence of known exploits currently provides a window for proactive mitigation before active exploitation occurs.

Organizations should immediately audit their use of the Aarsiv Groups Automated FedEx live/manual rates with shipping labels plugin and restrict access to the plugin’s functionalities to trusted users only. Implement network-level access controls and web application firewalls (WAFs) to monitor and block unauthorized requests targeting the plugin endpoints. Monitor logs for unusual access patterns or attempts to invoke shipping rate or label generation functions without proper authorization. Engage with the vendor to obtain patches or updates addressing the missing authorization flaw as soon as they become available. In the interim, consider disabling or limiting the plugin’s functionality if feasible. Conduct thorough security reviews of all third-party shipping and logistics integrations to identify similar access control weaknesses. Educate development and operations teams on secure configuration and the importance of enforcing strict authorization checks in all automation tools. Regularly update and patch all components in the shipping and e-commerce stack to reduce exposure to known vulnerabilities.