CVE-2018-19420

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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:get-simple:getsimple_cms:3.3.15:*:*:*:*:*:*:*", "matchCriteriaId": "1175D384-DC48-4226-9609-725629E65605", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In GetSimpleCMS 3.3.15, admin/upload.php blocks .html uploads but there are several alternative cases in which HTML can be executed, such as a file with no extension or an unrecognized extension (e.g., the test or test.asdf filename), because of admin/upload-uploadify.php, and validate_safe_file in admin/inc/security_functions.php."}, {"lang": "es", "value": "En GetSimpleCMS 3.3.15, admin/upload.php bloquea las subidas de .html, pero hay varios casos alternativos en los que se puede ejecutar HTML, como con un archivo sin extensi\u00f3n o con una extensi\u00f3n desconocida (como, por ejemplo, los nombres de archivo test o test.asdf). Esto se debe a admin/upload-uploadify.php y a validate_safe_file en admin/inc/security_functions.php."}], "id": "CVE-2018-19420", "lastModified": "2026-06-17T01:49:16.680", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.8, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 1.2, "impactScore": 2.5, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-11-21T21:29:00.220", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1301"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1301"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-434"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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