{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-30559", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-04-06T13:45:25.078Z", "dateReserved": "2026-03-04T00:00:00.000Z", "datePublished": "2026-03-30T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-03-30T15:29:17.748Z"}, "descriptions": [{"lang": "en", "value": "A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Sales and Inventory System 1.0. The vulnerability is located in the add_sales.php file via the \"msg\" parameter. The application fails to sanitize the input, allowing remote attackers to inject arbitrary web script or HTML via a crafted URL."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/meifukun/Web-Security-PoCs/blob/main/Inventory-System/XSS-AddSales-msg.md"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-79", "lang": "en", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "references": [{"url": "https://github.com/meifukun/Web-Security-PoCs/blob/main/Inventory-System/XSS-AddSales-msg.md", "tags": ["exploit"]}], "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-03-31T18:02:37.755188Z", "id": "CVE-2026-30559", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-06T13:45:25.078Z"}}]}, "dataVersion": "5.2"}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ahsanriaz26gmailcom:sales_and_inventory_system:1.0:*:*:*:*:*:*:*", "matchCriteriaId": "5A75B7A5-65D7-4AF9-BDE8-EBD496A4942B", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Sales and Inventory System 1.0. The vulnerability is located in the add_sales.php file via the \"msg\" parameter. The application fails to sanitize the input, allowing remote attackers to inject arbitrary web script or HTML via a crafted URL."}, {"lang": "es", "value": "Una vulnerabilidad de cross-site scripting (XSS) reflejado existe en SourceCodester Sales and Inventory System 1.0. La vulnerabilidad se encuentra en el archivo add_sales.php a trav\u00e9s del par\u00e1metro 'msg'. La aplicaci\u00f3n no sanitiza la entrada, permitiendo a atacantes remotos inyectar scripts web o HTML arbitrarios a trav\u00e9s de una URL manipulada."}], "id": "CVE-2026-30559", "lastModified": "2026-04-06T14:16:24.210", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-03-30T16:16:05.520", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/meifukun/Web-Security-PoCs/blob/main/Inventory-System/XSS-AddSales-msg.md"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/meifukun/Web-Security-PoCs/blob/main/Inventory-System/XSS-AddSales-msg.md"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.0]"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "sales_and_inventory_system", "vendor": "sourcecodester"}], "analysis": {"en": {"generated_at": "2026-04-06T17:06:20.803121+00:00", "value": {"mitigation_remediation": ["Apply vendor\u2011issued patch that sanitizes or encodes the msg parameter before echoing it back to the client.", "If no patch exists, perform input validation on the msg parameter, limiting allowed characters and enforcing a maximum length.", "Encode any output derived from msg using a proper escaping function from the application\u2019s language.", "Update the web application firewall to block requests that contain JavaScript or HTML payloads in the msg parameter.", "Monitor server logs for unexpected script injection patterns and investigate any incidents.", "Educate end\u2011users to avoid clicking on suspicious links that may contain malicious script."], "summary": {"action": "Apply Patch", "impact": "Client\u2011Side Script Injection"}, "threat_synthesis": {"affected_systems": "Only the 1.0 release of SourceCodester Sales and Inventory System is affected. No other versions or vendors have been reported to contain the flaw. The vulnerability resides in the publicly accessible web interface of the application.", "description_and_impact": "A reflected cross\u2011site scripting flaw exists in the add_sales.php module of SourceCodester Sales and Inventory System 1.0. The application echoes the value of the msg query string directly in the generated page, so an attacker can embed JavaScript or other HTML. This flaw can be used to steal credentials, deface pages, or conduct phishing attacks against other users, damaging confidentiality and integrity of user data.", "risk_and_exploitability": "The base CVSS score of 6.1 indicates a medium severity vulnerability, and the EPSS score of less than 1\u202f% suggests that widespread exploitation is currently unlikely. The flaw is not listed in the CISA KEV catalog. Attackers can launch the exploit remotely by sending a crafted GET request to add_sales.php without authentication, making it trivial for anyone who can reach the application URL."}}}}, "created": "2026-03-30T20:56:24.171149+00:00", "updated": "2026-04-07T08:08:46.260934+00:00", "vendors": ["sourcecodester", "sourcecodester$PRODUCT$sales_and_inventory_system"]}