CVE-2026-13571Public exploitNetwork attack vector

Arbitrary purchases via client-controlled cart prices

Published Jun 29, 2026 · Updated Jun 29, 2026

Business logic error in SourceCodester Simple Food Ordering System 1.0 allows remote authenticated users to purchase items at arbitrary prices. The cart.php flow accepts the POST item_price value and carries it through checkout and order creation without comparing it with the database price. A registered account can submit zero, negative, or discounted prices, altering order totals and stored transaction records.

CVSS severity6.9
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Business logic error in SourceCodester Simple Food Ordering System 1.0 allows remote authenticated users to purchase items at arbitrary prices. The cart.php flow accepts the POST item_price value and carries it through checkout and order creation without comparing it with the database price. A registered account can submit zero, negative, or discounted prices, altering order totals and stored transaction records.

The record

CVE
CVE-2026-13571
Published
Jun 29, 2026
Updated
Jun 29, 2026
Vendor
Online Computer and Laptop Store Project
Product
Simple Food Ordering System - Client-Side in PHP/MYSQLi
Classifications
CWE-840, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 29, 2026Record 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=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Online Computer and Laptop Store Project · Simple Food Ordering System - Client-Side in PHP/MYSQLiversion=1.0

Published CVSS scores

5.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-840Business Logic Errors
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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