{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-30557", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-04-06T13:45:09.835Z", "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')"}]}], "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": "2026-03-31T18:01:57.453838Z", "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": "2026-04-06T13:45:09.835Z"}}]}, "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": "2026-04-06T14:16:23.337", "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": "2026-03-30T16:16:05.310", "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"}], "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": "[1.0,1.0]"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 90.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "sales_and_inventory_system", "vendor": "sourcecodester"}], "analysis": {"en": {"generated_at": "2026-04-06T16:39:41.234082+00:00", "value": {"mitigation_remediation": ["Sanitize or encode the 'msg' query parameter in add_category.php using functions like htmlspecialchars to eliminate executable code.", "Implement input validation or a whitelist to allow only safe strings for the 'msg' parameter.", "Deploy a web application firewall rule that blocks suspicious payloads in the 'msg' query string.", "Verify whether the vendor has released an updated version that addresses the issue, and upgrade if available.", "If a patch is not immediately available, monitor user activity logs for anomalous requests containing the 'msg' parameter and consider blocking suspicious traffic."], "summary": {"action": "Apply Patch", "impact": "Cross\u2011Site Scripting"}, "threat_synthesis": {"affected_systems": "The vulnerability affects exclusively the SourceCodester Sales and Inventory System version 1.0, as identified by the provided CPE string. No other vendors, products, or versions are listed in the CNA data for this CVE.", "description_and_impact": "A reflected Cross\u2011Site Scripting flaw resides in the add_category.php file of the SourceCodester Sales and Inventory System 1.0, where the \"msg\" query parameter is not sanitized. An attacker can inject arbitrary HTML or JavaScript by crafting a URL that contains malicious payloads in this parameter. If a legitimate user follows such a link, the injected script runs in the user\u2019s browser, potentially allowing cookie theft, session hijacking, or malicious redirects. The weakness is consistent with CWE\u201179, which describes reflected XSS injection. The impact on confidentiality, integrity, or availability is limited to the victim\u2019s browser session and does not compromise server\u2011side data directly.", "risk_and_exploitability": "The CVSS base score of 6.1 indicates a moderate risk level. The EPSS score of less than 1% suggests that the likelihood of widespread exploitation is low, and the vulnerability is not currently catalogued in CISA\u2019s KEV list. Exploitation requires only that a user visit a tailored URL containing the malicious \"msg\" parameter; no authentication or privileged access is required. The attack is achievable via a standard web browser and can be performed by anyone who can send or entice a target to click the crafted link."}}}}, "created": "2026-03-30T20:56:25.979671+00:00", "updated": "2026-04-07T08:08:48.251033+00:00", "vendors": ["sourcecodester", "sourcecodester$PRODUCT$sales_and_inventory_system"]}