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    CVE-2026-30573

    A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0. The vulnerability is located in the add-sales.php file. The application fails to validate the "txtprice" and "txttotalcost" parameters, allowing attackers to submit negative values for sales transactions. This leads to incorrect financial calculations, corruption of sales reports, and potential financial loss.

    Published:Apr 1, 2026
    Last Modified:Apr 8, 2026
    EPS:Apr 1, 2026
    EPSS Score:0.00047
    CVSS Score:7.5

    Affected Products

    Vendor
    Senior-walter
    Product
    Web-based Pharmacy Product Management System
    Vendor
    Sourcecodester
    Product
    Web-based Pharmacy Product Management System

    Exploits

    https://github.com/meifukun/Web-Security-PoCs/blob/main/Pharmacy-Product-Management-System/Logic-AddSales-NegativePrice.md

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-30575 (CVSS 7.5) — A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-stoc…
    CVE-2026-30576 (CVSS 7.5) — A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-stoc…
    CVE-2026-30574 (CVSS 7.5) — A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-sale…
    CVE-2026-3766 (CVSS 2) — A security flaw has been discovered in SourceCodester Web-based Pharmacy Product Management System 1.0. This i…
    CVE-2026-3401 (CVSS 1.3) — A weakness has been identified in SourceCodester Web-based Pharmacy Product Management System 1.0. This affect…
    CVE-2025-65215 (CVSS 6.1) — Sourcecodester Web-based Pharmacy Product Management System v1.0 is vulnerable to Cross Site Scripting (XSS) i…
    CVE-2025-63712 (CVSS 8.8) — Cross-Site Request Forgery (CSRF) in SourceCodester Product Expiry Management System. The User Management modu…
    CVE-2025-56018 (CVSS 6.1) — SourceCodester Web-based Pharmacy Product Management System V1.0 is vulnerable to Cross Site Scripting (XSS) i…
    CVE-2025-56274 (CVSS 8.1) — SourceCodester Web-based Pharmacy Product Management System 1.0 is vulnerable to Incorrect Access Control, whi…
    CVE-2025-45997 (CVSS 8.6) — Sourcecodester Web-based Pharmacy Product Management System v.1.0 has a file upload vulnerability. An attacker…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High