CVE-2025-13116: Critical Look at mall-swarm’s Unauthorized Order Cancellation Flaw

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Overview

CVE-2025-13116 is a medium-severity vulnerability affecting macrozheng’s mall-swarm, specifically versions up to 1.0.3. This vulnerability resides in the cancelUserOrder function located in the /order/cancelUserOrder endpoint. An attacker can exploit this flaw by manipulating the orderId parameter, leading to improper authorization and potentially allowing the cancellation of orders belonging to other users. A proof-of-concept exploit is publicly available, increasing the risk of active exploitation. The vendor was notified but did not respond.

Published: 2025-11-13T14:15:48.550

Technical Details

The vulnerability stems from insufficient validation and authorization checks within the cancelUserOrder function. By altering the orderId parameter in the request, an attacker can potentially bypass the intended access controls and trigger the cancellation of an order that does not belong to them. This is a classic example of an improper authorization vulnerability.

Specifically, the application fails to properly verify that the user initiating the cancellation request is the actual owner of the order specified by the orderId. This lack of verification allows a malicious user to cancel any order by simply changing the order ID in the request.

CVSS Analysis

The Common Vulnerability Scoring System (CVSS) provides a standardized way to assess the severity of vulnerabilities. For CVE-2025-13116, the CVSS score is:

  • Severity: MEDIUM
  • CVSS Score: 5.4

While the severity is medium, the public availability of an exploit increases the potential risk.

Possible Impact

The impact of this vulnerability can be significant. Successful exploitation could lead to:

  • Unauthorized Order Cancellation: Malicious users can cancel orders placed by other users, disrupting business operations and causing financial losses.
  • Customer Dissatisfaction: Unexpected order cancellations can lead to negative customer experiences and damage the company’s reputation.
  • Data Manipulation: While the vulnerability directly affects order cancellation, it may be possible to chain this with other vulnerabilities to escalate privileges or access sensitive data.

Mitigation and Patch Steps

Since the vendor has not provided a patch, the following mitigation steps are recommended:

  1. Input Validation: Implement strict input validation on the orderId parameter to ensure it conforms to expected formats and ranges.
  2. Authorization Checks: Implement robust authorization checks to verify that the user attempting to cancel an order is indeed the owner of that order. This could involve checking user IDs against order records.
  3. Rate Limiting: Implement rate limiting on the /order/cancelUserOrder endpoint to prevent automated exploitation attempts.
  4. Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) with rules to detect and block requests attempting to exploit this vulnerability.
  5. Monitoring and Logging: Implement comprehensive monitoring and logging of order cancellation requests to detect suspicious activity.

References

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