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Simple Food Ordering System CVE-2026-13571

| EUVDEUVD-2026-40095 MEDIUM
Business Logic Errors (CWE-840)
2026-06-29 VulDB GHSA-vxhq-q9qm-8cqm
Information Disclosure PHP Simple Food Ordering System
5.5
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
5.5 MEDIUM
CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
5.3 MEDIUM

Network-reachable unauthenticated POST parameter manipulation; scope unchanged; only integrity is impacted via price falsification, no confidentiality or availability effect.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
CVSS changed
Jun 29, 2026 - 15:22 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)
Analysis Generated
Jun 29, 2026 - 15:15 vuln.today

DescriptionCVE.org

A flaw has been found in SourceCodester Simple Food Ordering System 1.0. The affected element is an unknown function of the file /cart.php. Executing a manipulation of the argument item_price can lead to business logic errors. The attack may be performed from remote. The exploit has been published and may be used.

AnalysisAI

Price parameter manipulation in SourceCodester Simple Food Ordering System 1.0 allows unauthenticated remote attackers to submit orders at arbitrary prices by modifying the item_price argument in POST requests to /cart.php. The server trusts client-supplied price data without server-side validation, enabling business logic bypass (CWE-840) that could result in financial loss for system operators. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Access web ordering interface
Delivery
Add item to cart
Exploit
Intercept /cart.php POST request
Execution
Modify item_price parameter to arbitrary value
Persist
Submit manipulated order
Impact
Order recorded at attacker-controlled price
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Vulnerability AssessmentAI

Exploitation No special conditions are required beyond access to the web application - exploitation targets the unauthenticated cart submission endpoint /cart.php on any publicly or network-accessible instance of Simple Food Ordering System 1.0. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 6.9 reflects network-reachable, unauthenticated, low-complexity exploitation with low integrity impact and no confidentiality or availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker identifies a publicly deployed instance of Simple Food Ordering System, adds items to the cart, and intercepts the HTTP POST request to /cart.php using a proxy tool such as Burp Suite. The attacker modifies the item_price parameter to a negligible value (e.g., 0.01) before forwarding the request, causing the system to record and process an order at the manipulated price. …
Remediation No vendor-released patch has been identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-13571 vulnerability details – vuln.today
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