CVE-2025-13116 identifies an improper authorization vulnerability in the macrozheng mall-swarm e-commerce platform, specifically affecting versions 1.0.0 through 1.0.3. The vulnerability resides in the cancelUserOrder function located in the /order/cancelUserOrder endpoint. By manipulating the orderId argument, an attacker can bypass authorization controls and cancel orders that they do not own or have permission to manage. This flaw is exploitable remotely over the network without requiring authentication or user interaction, increasing its risk profile. The vulnerability impacts the integrity and availability of order data, potentially allowing attackers to disrupt business operations by canceling legitimate customer orders. The CVSS 4.0 base score is 5.3, reflecting medium severity, with attack vector network (AV:N), low attack complexity (AC:L), no privileges required (PR:L), no user interaction (UI:N), and limited impact on confidentiality, integrity, and availability (VI:L, VA:L). Despite the availability of a public exploit, no active exploitation has been reported, and the vendor has not issued patches or responded to disclosure efforts. This lack of vendor response increases the urgency for organizations to implement compensating controls. The vulnerability is particularly concerning for organizations relying on macrozheng mall-swarm for order management, as unauthorized cancellations can lead to financial loss, customer dissatisfaction, and operational disruption.

For European organizations, this vulnerability poses a risk primarily to e-commerce platforms using macrozheng mall-swarm versions 1.0.0 to 1.0.3. Unauthorized order cancellations can result in financial losses, damage to customer trust, and disruption of supply chain or fulfillment processes. The integrity of order data is compromised, potentially affecting inventory management and revenue recognition. Availability of order management services may also be impacted if attackers exploit this flaw at scale. Given the remote and unauthenticated nature of the exploit, attackers can operate from anywhere, increasing the threat landscape. Organizations in sectors with high transaction volumes or critical order processing workflows are especially vulnerable. Additionally, the absence of vendor patches means that affected organizations must rely on internal mitigations, increasing operational overhead. The impact extends beyond direct financial loss to reputational damage and potential regulatory scrutiny under data protection and consumer protection laws prevalent in Europe.

Since no official patches are available from the vendor, European organizations should implement the following mitigations: 1) Deploy strict access controls and input validation on the cancelUserOrder endpoint to ensure only authorized users can cancel their own orders. 2) Implement web application firewalls (WAFs) with custom rules to detect and block suspicious manipulation of the orderId parameter. 3) Monitor logs for unusual cancellation patterns or repeated failed authorization attempts to identify potential exploitation attempts. 4) Employ rate limiting on order cancellation requests to reduce the risk of automated abuse. 5) Conduct thorough code reviews and consider temporary disabling or restricting the cancelUserOrder functionality if feasible until a patch is available. 6) Use network segmentation to isolate critical e-commerce components and reduce exposure. 7) Educate incident response teams to recognize and respond to signs of exploitation. 8) Engage with the vendor or community to track any updates or patches and apply them promptly once available. These targeted actions go beyond generic advice by focusing on compensating controls tailored to the specific vulnerability and operational context.