CVE-2026-30523

| EUVD-2026-17897 MEDIUM
2026-04-01 mitre
6.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

Lifecycle Timeline

4
PoC Detected
Apr 07, 2026 - 12:03 vuln.today
Public exploit code
Analysis Generated
Apr 01, 2026 - 15:00 vuln.today
EUVD ID Assigned
Apr 01, 2026 - 15:00 euvd
EUVD-2026-17897
CVE Published
Apr 01, 2026 - 00:00 nvd
MEDIUM 6.5

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.

Analysis

SourceCodester Loan Management System v1.0 accepts negative integer values for loan plan duration due to insufficient input validation on the months parameter, allowing attackers to create loan plans with invalid negative durations that may cause unexpected system behavior or financial miscalculations. Publicly available exploit code exists, though real-world impact depends on downstream business logic that consumes these invalid loan plans.

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Priority Score

53
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +32
POC: +20

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CVE-2026-30523 vulnerability details – vuln.today

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