CVE-2026-30523

A Business Logic vulnerability exists in SourceCodester Loan Management System v1.0 due to the lack of proper input validation

Medium · published April 1, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
40.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00483 · 40.7th percentile
Published
2026-04-01T00:00Z
EPSS history
Timeline
  • 01 APR 00:00Z
    A Business Logic vulnerability exists in SourceCodester Loan Management System v1.0 due to the lack of proper input validation
    cvelistv5