{"containers": {"cna": {"affected": [{"product": "Movable Type", "vendor": "Six Apart Ltd.", "versions": [{"status": "affected", "version": "Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series) and Movable Type Premium Advanced 1.44 and earlier"}]}], "descriptions": [{"lang": "en", "value": "Cross-site scripting vulnerability in Setting screen of Server Sync of Movable Type (Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series) and Movable Type Premium Advanced 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors."}], "problemTypes": [{"descriptions": [{"description": "Cross-site scripting", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-08-26T01:20:41.000Z", "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "shortName": "jpcert"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://movabletype.org/news/2021/08/mt-780-681-released.html"}, {"tags": ["x_refsource_MISC"], "url": "https://jvn.jp/en/jp/JVN97545738/index.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "vultures@jpcert.or.jp", "ID": "CVE-2021-20812", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Movable Type", "version": {"version_data": [{"version_value": "Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series) and Movable Type Premium Advanced 1.44 and earlier"}]}}]}, "vendor_name": "Six Apart Ltd."}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Cross-site scripting vulnerability in Setting screen of Server Sync of Movable Type (Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series) and Movable Type Premium Advanced 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Cross-site scripting"}]}]}, "references": {"reference_data": [{"name": "https://movabletype.org/news/2021/08/mt-780-681-released.html", "refsource": "MISC", "url": "https://movabletype.org/news/2021/08/mt-780-681-released.html"}, {"name": "https://jvn.jp/en/jp/JVN97545738/index.html", "refsource": "MISC", "url": "https://jvn.jp/en/jp/JVN97545738/index.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:53:22.692Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://movabletype.org/news/2021/08/mt-780-681-released.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://jvn.jp/en/jp/JVN97545738/index.html"}]}]}, "cveMetadata": {"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "assignerShortName": "jpcert", "cveId": "CVE-2021-20812", "datePublished": "2021-08-26T01:20:41.000Z", "dateReserved": "2020-12-17T00:00:00.000Z", "dateUpdated": "2024-08-03T17:53:22.692Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Movable Type", "vendor": "Six Apart Ltd.", "versions": [{"status": "affected", "version": "Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series) and Movable Type Premium Advanced 1.44 and earlier"}]}], "source": "vultures@jpcert.or.jp"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:*", "matchCriteriaId": "69B0E270-7BF7-4B9F-974B-B71B11788D5E", "versionEndIncluding": "1.44", "vulnerable": true}, {"criteria": "cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:*", "matchCriteriaId": "5CA5A16F-B42D-4DC7-B9A0-5CA49B05DA7B", "versionEndExcluding": "7.8.0", "versionStartIncluding": "7.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross-site scripting vulnerability in Setting screen of Server Sync of Movable Type (Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series) and Movable Type Premium Advanced 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors."}, {"lang": "es", "value": "Una vulnerabilidad de tipo cross-site scripting en la pantalla Setting de Server Sync de Movable Type (Movable Type Advanced 7 versiones r.4903 y anteriores (Movable Type Advanced 7 Series) y Movable Type Premium Advanced versiones 1.44 y anteriores), permite a atacantes remotos inyectar script arbitrario o HTML por medio de vectores no especificados."}], "id": "CVE-2021-20812", "lastModified": "2026-06-17T03:34:29.577", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "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": 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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-26T02:15:11.557", "references": [{"source": "vultures@jpcert.or.jp", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/jp/JVN97545738/index.html"}, {"source": "vultures@jpcert.or.jp", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://movabletype.org/news/2021/08/mt-780-681-released.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/jp/JVN97545738/index.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://movabletype.org/news/2021/08/mt-780-681-released.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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