CVE-2026-109407
Deferred Deferred - Pending Action

Race Condition in MacroZheng Mall Coupon Redemption

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: VulDB

Description
A security vulnerability has been detected in macrozheng mall up to 1.0.3. This issue affects some unknown processing of the file /order/generateOrder of the component Coupon Redemption. Such manipulation of the argument couponId leads to race condition. The attack may be performed from remote. The attack requires a high level of complexity. The exploitability is assessed as difficult. The vendor deleted the GitHub issue for this vulnerability without any explanation.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-13
AI Q&A
2026-10-13
EPSS Evaluated
N/A
NVD
CVE-2026-109407
EUVD
EUVD-2026-98552

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
macrozheng mall 1.0.0
macrozheng mall 1.0.1
macrozheng mall 1.0.2
macrozheng mall 1.0.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-362 The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Attack-Flow Graph

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Executive Summary

This vulnerability is a race condition in the macrozheng mall system up to version 1.0.3. It occurs in the coupon redemption process, specifically in the /order/generateOrder endpoint. An attacker can manipulate the couponId parameter to exploit this issue. The attack is complex and requires remote access but has a difficult exploitability rating.

Detection Guidance

Detection may involve monitoring for unusual order generation activity or race conditions in coupon redemption. Check application logs for repeated /order/generateOrder requests with the same couponId. Use network monitoring tools to inspect traffic patterns to the affected endpoint.

Impact Analysis

The impact is limited due to the vulnerability's complexity. It may allow unauthorized coupon usage or order manipulation, potentially leading to financial loss or unfair advantages in the e-commerce system. However, the high complexity reduces real-world risk.

Mitigation Strategies

Upgrade macrozheng mall to a version beyond 1.0.3 if available. Implement rate limiting on the /order/generateOrder endpoint. Add input validation for couponId to prevent manipulation. Monitor for suspicious activity and restrict access to the coupon redemption component.

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