CVE-2025-12919 is a vulnerability identified in EverShop, an e-commerce platform, specifically affecting versions 2.0.0 and 2.0.1. The flaw resides in the Order Handler module within the GraphQL resolver file Order.resolvers.js, where improper control over resource identifiers occurs due to manipulation of the uuid argument. This improper control can allow an attacker to influence which order resources are accessed or manipulated, potentially leading to unauthorized data exposure or modification. The attack vector is remote network access without requiring authentication or user interaction, but the attack complexity is high, indicating that exploitation demands significant skill or specific conditions. The CVSS 4.0 vector (AV:N/AC:H/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P) indicates a network attack with high complexity, no privileges or user interaction required, and low impact on confidentiality, with no impact on integrity or availability. The vendor was notified early but did not respond, and no official patch is available yet. Although no exploits are known in the wild, public exploit code has been released, increasing the risk of future attacks. The vulnerability is significant for organizations relying on EverShop for order processing, as it could allow attackers to access or manipulate order data improperly.

For European organizations using EverShop, this vulnerability could lead to unauthorized access to order information, potentially exposing sensitive customer data or enabling fraudulent order manipulation. While the impact on confidentiality is low and integrity and availability are not affected according to the CVSS, the improper control of resource identifiers could still undermine trust in e-commerce operations and lead to financial or reputational damage. The high complexity of exploitation reduces immediate risk, but the availability of public exploit code increases the likelihood of future attacks. Organizations in sectors with high e-commerce activity, such as retail and logistics, could face operational disruptions or compliance issues under GDPR if customer data is improperly accessed. The lack of vendor response and patches further exacerbates the risk, requiring organizations to implement compensating controls.

Since no official patch is currently available, European organizations should implement the following mitigations: 1) Restrict external access to the GraphQL endpoint handling order data by using network segmentation, firewalls, or API gateways to limit exposure. 2) Implement strict input validation and sanitization on the uuid parameter at the application or proxy level to prevent manipulation. 3) Employ runtime application self-protection (RASP) or Web Application Firewalls (WAFs) configured to detect and block suspicious GraphQL queries targeting the Order Handler. 4) Monitor logs for unusual access patterns or attempts to manipulate order identifiers remotely. 5) Consider temporarily disabling or restricting the vulnerable module if feasible until a patch is released. 6) Engage with the vendor or community for updates and apply patches promptly once available. 7) Conduct security reviews and penetration testing focused on GraphQL endpoints to identify similar weaknesses.