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{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Missing authorization vulnerability exists in Movable Type. Under certain conditions, when a user without administrator privileges signs in to the product, unintended update processing may be executed."}], "id": "CVE-2026-44392", "lastModified": "2026-05-20T07:16:15.317", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "vultures@jpcert.or.jp", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "vultures@jpcert.or.jp", "type": "Secondary"}]}, "published": "2026-05-20T07:16:15.317", "references": [{"source": "vultures@jpcert.or.jp", "url": "https://jvn.jp/en/jp/JVN66473735/"}, {"source": "vultures@jpcert.or.jp", "url": "https://movabletype.org/news/2026/05/mt-908-released.html"}, {"source": "vultures@jpcert.or.jp", "url": "https://www.sixapart.jp/movabletype/news/2026/05/20-1100.html"}], "sourceIdentifier": "vultures@jpcert.or.jp", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "vultures@jpcert.or.jp", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,9.1.1]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,9.0.7]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,8.8.3]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,8.0.10]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Movable Type", "source": "cna", "vendor": "Six Apart Ltd."}, "product": "movable_type", "vendor": "six_apart"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,9.1.1]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,9.0.7]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,8.8.3]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,8.0.10]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}]}, "product": "movable_type_advanced", "vendor": "six_apart"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.15]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,9.1.1]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,9.0.7]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "product": "movable_type_premium", "vendor": "six_apart"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,9.1.1]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,9.0.7]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.15]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 99.0, "source": "matching"}]}, "original": {"product": "Movable Type Premium (Advanced Edition)", "source": "cna", "vendor": "Six Apart Ltd."}, "product": "movable_type_premium_advanced_edition", "vendor": "six_apart"}], "created": "2026-05-20T07:30:25.323477+00:00", "title": "Missing Authorization Allows Unintended Updates in Movable Type", "updated": "2026-05-20T10:37:56.320031+00:00", "vendors": ["six_apart", "six_apart$PRODUCT$movable_type", "six_apart$PRODUCT$movable_type_advanced", "six_apart$PRODUCT$movable_type_premium", "six_apart$PRODUCT$movable_type_premium_advanced_edition"]}