CVE-2026-30523 — A Business Logic vulnerability exists in SourceCodester Loan Management System…
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🚨 CVE-2026-30523 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 th
What This Means For You
- New vulnerability disclosed — verify if your stack is exposed.
Related ATT&CK Techniques
🛡️ Detection Rules
1 rule · 6 SIEM formats1 detection rule mapped to MITRE ATT&CK. Free Sigma YAML below.
Web Application Exploitation Attempt — CVE-2026-30523
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-30523 | Business Logic | SourceCodester Loan Management System v1.0, vulnerable component: Loan Plans creation, vulnerability: lack of input validation for loan duration (months parameter allows negative integers). |
Source & Attribution
| Source Platform | Telegram |
| Channel | CVE Notify |
| Published | April 07, 2026 at 15:26 UTC |
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