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        "cveId": "CVE-2026-57311",
        "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
        "state": "PUBLISHED",
        "assignerShortName": "CERT-PL",
        "dateReserved": "2026-06-24T12:12:42.195Z",
        "datePublished": "2026-07-20T12:53:08.554Z",
        "dateUpdated": "2026-07-29T09:42:56.327Z"
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                "dateUpdated": "2026-07-29T09:42:56.327Z"
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            "title": "Unrestricted Upload of File with Dangerous Type in Windu CMS",
            "datePublic": "2026-07-20T00:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-434",
                            "description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
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                    "vendor": "JCD",
                    "product": "Windu CMS",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "4.1",
                            "versionType": "custom"
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                    "defaultStatus": "unknown"
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            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Windu CMS does not validate types of uploaded files. An authenticated attacker can upload arbitrary files, including PHP. This can lead to Remote Code Execution.\n\nBecause vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 4.1 but may also affect other versions.",
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                        }
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            ],
            "references": [
                {
                    "url": "https://cert.pl/posts/2026/07/CVE-2026-57309",
                    "tags": [
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                },
                {
                    "url": "https://windu.org",
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                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "subConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "LOW",
                        "subIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "LOW",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
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                        "version": "4.0",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 5.3,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L"
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            "credits": [
                {
                    "lang": "en",
                    "value": "Jakub Lipiński",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Marek Tołczyk",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Kamil Królikowski",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Karol Czubernat",
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            ],
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                "discovery": "EXTERNAL"
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                                "timestamp": "2026-07-20T13:45:57.751479Z",
                                "id": "CVE-2026-57311",
                                "options": [
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                                        "Exploitation": "none"
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