CVE-2026-30523_CVE-2026-30523

6.5 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Description

A Business Logic vulnerability exists in SourceCodester Loan Management System v1.0 due to the lack of proper input validation. The application allows administrators to define "Loan Plans" which determine the duration of a loan (in months). However, the backend fails to validate that the duration must be a positive integer. An attacker can submit a negative value for the months parameter. The system accepts this invalid data and creates a loan plan with a negative duration.

Basic Information

ID CVE-2026-30523

Source mitre

Published Apr 1, 2026 at 00:00

Modified Apr 1, 2026 at 17:56

Affected Product

Vendor n/a

Product n/a

Version n/a

Affected Versions n/a n/a n/a

CWE Classification

CWE-20

References

github.com /meifukun/Web-Security-PoCs/blob/main/Loan-Management-System/BusinessLogic-LoanPlan-NegativeMonths.md

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    "published": "2026-04-01T00:00:00.000Z",
    "modified": "2026-04-01T17:56:53.409Z",
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