CVE-2026-30523 Business logic in n/a
Attackers can create loan plans with negative durations due to missing input validation, compromising data integrity in the Loan Management System.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-30523?
CVE-2026-30523 is a medium-severity vulnerability in n/a, published on 1 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-20
Which versions are affected by CVE-2026-30523?
It affects 1 product.
Products include Oretnom23 Loan Management System.
How do I fix CVE-2026-30523?
No fix has been published for CVE-2026-30523 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-30523 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30523 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-5gjp-7788-qpxg.