CVE-2025-15084 identifies an improper access control vulnerability in the youlaitech youlai-mall e-commerce platform, specifically in the orderService.payOrder function within the Order Payment Handler component. The vulnerability arises from insufficient enforcement of access controls, potentially allowing unauthorized remote actors to manipulate payment processing operations. The affected versions are 1.0.0 and 2.0.0. The vulnerability can be exploited remotely without user interaction but requires low privileges and is considered of high complexity, indicating that exploitation demands significant technical skill or specific conditions. The CVSS 4.0 vector (AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P) reflects network attack vector, high attack complexity, no user interaction, and limited impact on integrity. No known exploits are currently active in the wild, and the vendor has not issued patches or responded to disclosure attempts. The lack of patch availability increases the risk for organizations relying on this software. The vulnerability's core risk lies in unauthorized manipulation of payment orders, which could lead to financial discrepancies or fraud if exploited. However, the high complexity and low CVSS score suggest limited practical exploitation likelihood at present.

For European organizations using youlai-mall, the vulnerability poses a risk to the integrity of payment transactions, potentially allowing unauthorized payment manipulations. This could result in financial losses, reputational damage, and operational disruptions in e-commerce environments. However, the low CVSS score and high exploitation complexity reduce the immediate threat level. The lack of vendor response and patches means organizations must proactively manage risk. In sectors with high transaction volumes or sensitive financial data, even low-severity vulnerabilities in payment handlers warrant attention. Additionally, regulatory compliance under GDPR and PCI-DSS may be impacted if unauthorized access leads to data breaches or fraud. The threat is more relevant for companies that have integrated youlai-mall deeply into their payment workflows, especially those without compensating controls or network segmentation.

1. Conduct a thorough code and configuration review of the orderService.payOrder function and related payment processing components to identify and enforce strict access controls. 2. Implement network segmentation and firewall rules to restrict access to the payment handler APIs only to trusted internal systems and authenticated users. 3. Apply runtime monitoring and anomaly detection on payment transactions to detect unauthorized or suspicious activities promptly. 4. Use multi-factor authentication and role-based access controls for any administrative or payment processing interfaces. 5. If possible, isolate the payment processing environment to minimize exposure to external networks. 6. Engage in active threat hunting for any signs of exploitation attempts targeting this vulnerability. 7. Prepare incident response plans specific to payment fraud scenarios. 8. Monitor vendor communications for any future patches or advisories and plan for timely updates. 9. Consider alternative e-commerce platforms or custom patches if the vendor remains unresponsive. 10. Document and report compliance risks related to this vulnerability to internal governance teams.