CVE-2026-30576

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:senior-walter:web-based_pharmacy_product_management_system:1.0:*:*:*:*:*:*:*", "matchCriteriaId": "DB2DA030-DE10-4DA9-86D7-3E3E9A22DABC", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-stock.php file. The application fails to validate the \"txtprice\" and \"txttotalcost\" parameters during stock entry, allowing negative financial values to be submitted. This leads to corruption of financial records, allowing attackers to manipulate inventory asset values and procurement costs."}, {"lang": "es", "value": "Una vulnerabilidad de l\u00f3gica de negocio existe en SourceCodester Pharmacy Product Management System 1.0 en el archivo add-stock.PHP. La aplicaci\u00f3n no valida los par\u00e1metros \u2019txtprice\u2019 y \u2019txttotalcost\u2019 durante la entrada de stock, permitiendo que se env\u00eden valores financieros negativos. Esto lleva a la corrupci\u00f3n de los registros financieros, permitiendo a los atacantes manipular los valores de los activos del inventario y los costos de adquisici\u00f3n."}], "id": "CVE-2026-30576", "lastModified": "2026-11-11T19:10:00.360", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-30576", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-27T19:03:20.336273Z", "version": "2.0.3"}}]}, "published": "2026-03-27T17:16:29.057", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/meifukun/Web-Security-PoCs/blob/main/Pharmacy-Product-Management-System/Logic-AddStock-NegativePrice.md"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "pharmacy_product_management_system", "vendor": "sourcecodester"}], "analysis": {"en": {"generated_at": "2026-03-31T17:30:11.877644+00:00", "value": {"mitigation_remediation": ["Update the add\u2011stock.php code to enforce server\u2011side validation that txtprice and txttotalcost are positive numeric values", "Enforce authentication and restrict add\u2011stock.php access to administrators only", "Audit the database for existing negative entries and correct financial records", "Implement logging and monitor for abnormal stock entry attempts"], "summary": {"action": "Apply Fix", "impact": "Financial Record Manipulation"}, "threat_synthesis": {"affected_systems": "The vulnerability exists in SourceCodester Pharmacy Product Management System 1.0, a PHP\u2011based web application that manages pharmacy inventory. No specific vendor is listed in the CNA data, but the application is identified by the CPE string for senior\u2011walter:web\u2011based_pharmacy_product_management_system 1.0.", "description_and_impact": "A business logic flaw in the add\u2011stock.php module of Web\u2011Based Pharmacy Product Management System version 1.0 allows the application to accept negative values for the txtprice and txttotalcost fields without validation. The unchecked negative numbers corrupt financial records, enabling an attacker to artificially lower inventory asset values and procurement costs, thereby skewing reported financial statements and potentially stealing value from the organization. This weakness maps to CWE\u201120 (Input Validation).", "risk_and_exploitability": "With a CVSS score of 7.5 the risk level is medium\u2011high. The EPSS score of less than 1% indicates a low likelihood that existing exploit code is available in the wild. The vulnerability is not in the CISA KEV catalog. The most likely attack vector is via the web interface that handles stock entries, and it probably requires administrative privileges to access add\u2011stock.php. Once accessed, an attacker can submit negative numeric values to corrupt the system\u2019s financial data. "}}}}, "created": "2026-03-27T20:28:56.767653+00:00", "title": "Business Logic Vulnerability Allowing Negative Financial Values in Web\u2011Based Pharmacy Product Management System", "updated": "2026-03-31T20:01:22.393835+00:00", "vendors": ["sourcecodester", "sourcecodester$PRODUCT$pharmacy_product_management_system"]}