CVE-2025-5136Public exploitNetwork attack vector

Payment bypass via unbound order identifiers

Published May 24, 2025 · Updated May 28, 2025

Business-logic flaw in Tmall Demo 20250505 allows remote attackers to bypass payment by substituting another order identifier. The /tmall/order/pay/ workflow accepts attacker-supplied order identifiers across its success and confirmation requests without binding them to the original transaction. Unauthenticated exploitation requires a specific two-request sequence and can remove an item from the cart while leaving the order pending without valid payment.

CVSS severity6.3
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Business-logic flaw in Tmall Demo 20250505 allows remote attackers to bypass payment by substituting another order identifier. The /tmall/order/pay/ workflow accepts attacker-supplied order identifiers across its success and confirmation requests without binding them to the original transaction. Unauthenticated exploitation requires a specific two-request sequence and can remove an item from the cart while leaving the order pending without valid payment.

The record

CVE
CVE-2025-5136
Published
May 24, 2025
Updated
May 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-330, CWE-310, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 2025CVE publishedPublication date reported by the CVE source.
  2. May 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.7VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
6.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
2.6VulDBAV:N/AC:H/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-330Use of Insufficiently Random Values
CWE-310Cryptographic Issues
T1565.001Stored Data Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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