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{"affected": [{"affectedData": [{"product": "baserCMS", "vendor": "baserCMS Users Community", "versions": [{"status": "affected", "version": "versions prior to 4.4.5"}]}], "source": "vultures@jpcert.or.jp"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:*", "matchCriteriaId": "E63194A0-F37D-4ADB-B7F3-347021DF734D", "versionEndExcluding": "4.4.5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper neutralization of JavaScript input in the blog article editing function of baserCMS versions prior to 4.4.5 allows remote authenticated attackers to inject an arbitrary script via unspecified vectors."}, {"lang": "es", "value": "Una neutralizaci\u00f3n inapropiada de la entrada de JavaScript en la funci\u00f3n blog article editing de baserCMS versiones anteriores a 4.4.5, permite a atacantes autenticados remotos inyectar un script arbitrario por medio de vectores no especificados."}], "id": "CVE-2021-20683", "lastModified": "2026-06-17T03:34:14.947", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 3.5, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-03-26T09:15:12.167", "references": [{"source": "vultures@jpcert.or.jp", "tags": ["Patch", "Vendor Advisory"], "url": "https://basercms.net/security/JVN64869876"}, {"source": "vultures@jpcert.or.jp", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/jp/JVN64869876/index.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://basercms.net/security/JVN64869876"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/jp/JVN64869876/index.html"}], "sourceIdentifier": "vultures@jpcert.or.jp", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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