{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-30557", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-03-31T18:06:59.338Z", "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": "2026-03-30T15:33:15.117Z"}, "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_category.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-AddCategory-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-AddCategory-msg.md", "tags": ["exploit"]}], "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-03-31T18:01:57.453838Z", "id": "CVE-2026-30557", "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": "2026-03-31T18:06:59.338Z"}}]}, "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_category.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_category.PHP a trav\u00e9s del par\u00e1metro 'msg'. La aplicaci\u00f3n no sanea la entrada, permitiendo a atacantes remotos inyectar scripts web o HTML arbitrarios a trav\u00e9s de una URL manipulada."}], "id": "CVE-2026-30557", "lastModified": "2026-04-01T15:42:00.950", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-03-30T16:16:05.310", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/meifukun/Web-Security-PoCs/blob/main/Inventory-System/XSS-AddCategory-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-AddCategory-msg.md"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

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{"analysis": {"en": {"generated_at": "2026-03-31T19:40:00.548916+00:00", "value": {"mitigation_remediation": ["Apply any vendor\u2011issued patch or updated version of SourceCodester Sales and Inventory System once available.", "Implement server\u2011side input validation and output encoding for the 'msg' parameter in add_category.php to neutralize script injection.", "Deploy a Content Security Policy that blocks inline scripts and restricts executable resources.", "Monitor web traffic for unexpected scripts and educate users about phishing links."], "summary": {"action": "Apply Patch", "impact": "Reflected Cross\u2011Site Scripting"}, "threat_synthesis": {"affected_systems": "This issue affects SourceCodester Sales and Inventory System version 1.0. No additional affected versions are listed. Users running the default build of this application are vulnerable. Vendors or product families are not identified in the dataset.", "description_and_impact": "A Reflected Cross\u2011Site Scripting vulnerability is present in SourceCodester Sales and Inventory System 1.0. The add_category.php script accepts a 'msg' parameter without sanitization, allowing attackers to embed arbitrary JavaScript or HTML. If a victim clicks a malicious link containing a crafted 'msg' value, the injected code runs in the victim\u2019s browser, potentially defacing the site, stealing session cookies, or executing other client\u2011side attacks. The weakness falls under CWE\u201179.", "risk_and_exploitability": "The CVSS base score is 5.4, indicating a moderate risk level. The EPSS score is below 1%, suggesting low likelihood of mass exploitation at this time. The vulnerability is not included in the CISA KEV catalog. Attackers can exploit it remotely by sending a crafted URL to a user; the vulnerability is reflected, so the impact is limited to the user\u2019s browser session and is mitigated by browser security controls. Nevertheless, the potential for cookie theft or browser compromise warrants timely remediation."}}}}, "created": "2026-03-30T20:56:25.979671+00:00", "updated": "2026-03-31T20:00:27.786948+00:00", "vendors": []}