CVE-2024-6128Public exploitNetwork attack vector

Negative checkout totals via unchecked item quantity

Published Jun 18, 2024 · Updated Aug 1, 2024

Business logic validation failure in SPA-Cart 1.9.0.6 allows remote attackers to produce negative checkout totals via a crafted quantity. The cart-add handler accepts a negative amount without rejecting or normalizing it, and the checkout page multiplies that quantity by the item price. No authentication or user interaction is required; the demonstrated consequence is manipulation of the cart's displayed amount, not confirmed payment or order completion.

CVSS severity6.9
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Business logic validation failure in SPA-Cart 1.9.0.6 allows remote attackers to produce negative checkout totals via a crafted quantity. The cart-add handler accepts a negative amount without rejecting or normalizing it, and the checkout page multiplies that quantity by the item price. No authentication or user interaction is required; the demonstrated consequence is manipulation of the cart's displayed amount, not confirmed payment or order completion.

The record

CVE
CVE-2024-6128
Published
Jun 18, 2024
Updated
Aug 1, 2024
Vendor
SPA-Cart
Product
SPA-Cart
Classifications
CWE-841, T1565
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.9.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SPA-Cart · SPA-Cartversion=1.9.0.6

Published CVSS scores

5.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N
5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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-841Improper Enforcement of Behavioral Workflow
T1565Data 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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