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CVE-2026-30522

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SourceCodester Loan Management System是SourceCodester开源的一个贷款管理系统。 SourceCodester Loan Management System v1.0版本存在安全漏洞，该漏洞源于服务器端验证不当，可能导致经过身份验证的攻击者通过操纵HTTP POST请求提交负值的penalty_rate来绕过客户端限制。

AI Predicted 5.3 Difficulty: Easy EPSS 0.26% · P17
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I. Basic Information for CVE-2026-30522

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A Business Logic vulnerability exists in SourceCodester Loan Management System v1.0 due to improper server-side validation. The application allows administrators to create "Loan Plans" with specific penalty rates for overdue payments. While the frontend interface prevents users from entering negative numbers in the "Monthly Overdue Penalty" field, this constraint is not enforced on the backend. An authenticated attacker can bypass the client-side restriction by manipulating the HTTP POST request to submit a negative value for the penalty_rate.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
SourceCodester Loan Management System 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SourceCodester Loan Management System是SourceCodester开源的一个贷款管理系统。 SourceCodester Loan Management System v1.0版本存在安全漏洞，该漏洞源于服务器端验证不当，可能导致经过身份验证的攻击者通过操纵HTTP POST请求提交负值的penalty_rate来绕过客户端限制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2026-30522

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III. Intelligence Information for CVE-2026-30522

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Proof of Concept for CVE-2026-30522 (1)

Same Patch Batch · n/a · 2026-04-01 · 28 CVEs total

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CVE-2026-30287 Deep Thought Industries ACE Scanner PDF Scanner 安全漏洞
CVE-2026-30292 Docudepot PDF Reader 安全漏洞
CVE-2026-30526 SourceCodester Zoo Management System 安全漏洞
CVE-2026-30291 Ora Tools PDF Reader 安全漏洞
CVE-2026-30523 SourceCodester Loan Management System 安全漏洞
CVE-2026-30273 PandasAI 安全漏洞
CVE-2026-31027 TOTOLINK A3600R 安全漏洞
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CVE-2026-34873 Mbed TLS 安全漏洞

Showing top 20 of 28 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

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