CVE-2026-15305

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-15305", "assignerOrgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "state": "PUBLISHED", "assignerShortName": "TYPO3", "dateReserved": "2026-07-09T16:25:43.306Z", "datePublished": "2026-07-14T12:45:10.996Z", "dateUpdated": "2026-07-15T12:26:56.912Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "shortName": "TYPO3", "dateUpdated": "2026-07-15T12:26:56.912Z"}, "title": "TYPO3 CMS - Unrestricted File Upload in Form Framework", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-351", "description": "CWE-351 Insufficient Type Distinction", "type": "CWE"}]}], "affected": [{"vendor": "TYPO3", "product": "TYPO3 CMS", "collectionURL": "https://packagist.org", "packageName": "typo3/cms-form", "repo": "https://github.com/TYPO3/typo3", "modules": ["Form Framework"], "versions": [{"status": "affected", "version": "14.2.0", "lessThan": "14.3.5", "versionType": "semver"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*", "versionStartIncluding": "14.2.0", "versionEndExcluding": "14.3.5", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "OR"}], "descriptions": [{"lang": "en", "value": "Users were able to upload files with arbitrary MIME types to forms using FileUpload or ImageUpload elements with allowedMimeTypes configured. The restriction was not enforced server-side because the MimeTypeValidator was registered during form building before concrete form definition properties were applied, resulting in the validator never being added to the processing pipeline. This issue affects TYPO3 CMS versions 14.2.0-14.3.4.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Users were able to upload files with arbitrary MIME types to forms using <code>FileUpload</code> or <code>ImageUpload</code> elements with <code>allowedMimeTypes</code> configured. The restriction was not enforced server-side because the <code>MimeTypeValidator</code> was registered during form building before concrete form definition properties were applied, resulting in the validator never being added to the processing pipeline. This issue affects TYPO3 CMS versions 14.2.0-14.3.4."}]}], "references": [{"url": "https://typo3.org/security/advisory/typo3-core-sa-2026-020", "tags": ["vendor-advisory"]}, {"url": "https://github.com/TYPO3/typo3/commit/817ad41cc9dd28aac0fc4d0fe16fc25d46dd554a", "name": "Git commit of main branch", "tags": ["patch"]}, {"url": "https://github.com/TYPO3/typo3/commit/cfda21050398eb145211a4fa6f9988f10e43e10b", "name": "Git commit of 14.3 branch", "tags": ["patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 6.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Josua Vogel", "type": "remediation developer"}, {"lang": "en", "value": "Oliver Hader", "type": "remediation developer"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-14T13:26:13.647808Z", "id": "CVE-2026-15305", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-14T13:26:21.743Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-15305", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-14T13:26:13.647808Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-14T13:26:18.256Z"}}], "cna": {"title": "TYPO3 CMS - Unrestricted File Upload in Form Framework", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "remediation developer", "value": "Josua Vogel"}, {"lang": "en", "type": "remediation developer", "value": "Oliver Hader"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://github.com/TYPO3/typo3", "vendor": "TYPO3", "modules": ["Form Framework"], "product": "TYPO3 CMS", "versions": [{"status": "affected", "version": "14.2.0", "lessThan": "14.3.5", "versionType": "semver"}], "packageName": "typo3/cms-form", "collectionURL": "https://packagist.org", "defaultStatus": "unaffected"}], "references": [{"url": "https://typo3.org/security/advisory/typo3-core-sa-2026-020", "tags": ["vendor-advisory"]}, {"url": "https://github.com/TYPO3/typo3/commit/817ad41cc9dd28aac0fc4d0fe16fc25d46dd554a", "name": "Git commit of main branch", "tags": ["patch"]}, {"url": "https://github.com/TYPO3/typo3/commit/cfda21050398eb145211a4fa6f9988f10e43e10b", "name": "Git commit of 14.3 branch", "tags": ["patch"]}], "x_generator": {"engine": "Vulnogram 1.0.1"}, "descriptions": [{"lang": "en", "value": "Users were able to upload files with arbitrary MIME types to forms using FileUpload or ImageUpload elements with allowedMimeTypes configured. The restriction was not enforced server-side because the MimeTypeValidator was registered during form building before concrete form definition properties were applied, resulting in the validator never being added to the processing pipeline. This issue affects TYPO3 CMS versions 14.2.0-14.3.4.", "supportingMedia": [{"type": "text/html", "value": "Users were able to upload files with arbitrary MIME types to forms using <code>FileUpload</code> or <code>ImageUpload</code> elements with <code>allowedMimeTypes</code> configured. The restriction was not enforced server-side because the <code>MimeTypeValidator</code> was registered during form building before concrete form definition properties were applied, resulting in the validator never being added to the processing pipeline. This issue affects TYPO3 CMS versions 14.2.0-14.3.4.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-351", "description": "CWE-351 Insufficient Type Distinction"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "14.3.5", "versionStartIncluding": "14.2.0"}], "operator": "OR"}], "operator": "OR"}], "providerMetadata": {"orgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "shortName": "TYPO3", "dateUpdated": "2026-07-15T12:26:56.912Z"}}}, "cveMetadata": {"cveId": "CVE-2026-15305", "state": "PUBLISHED", "dateUpdated": "2026-07-15T12:26:56.912Z", "dateReserved": "2026-07-09T16:25:43.306Z", "assignerOrgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "datePublished": "2026-07-14T12:45:10.996Z", "assignerShortName": "TYPO3"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://packagist.org", "defaultStatus": "unaffected", "modules": ["Form Framework"], "packageName": "typo3/cms-form", "product": "TYPO3 CMS", "repo": "https://github.com/TYPO3/typo3", "vendor": "TYPO3", "versions": [{"lessThan": "14.3.5", "status": "affected", "version": "14.2.0", "versionType": "semver"}]}], "source": "f4fb688c-4412-4426-b4b8-421ecf27b14a"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Users were able to upload files with arbitrary MIME types to forms using FileUpload or ImageUpload elements with allowedMimeTypes configured. The restriction was not enforced server-side because the MimeTypeValidator was registered during form building before concrete form definition properties were applied, resulting in the validator never being added to the processing pipeline. This issue affects TYPO3 CMS versions 14.2.0-14.3.4."}, {"lang": "es", "value": "Los usuarios pudieron subir archivos con tipos MIME arbitrarios a formularios usando elementos FileUpload o ImageUpload con allowedMimeTypes configurados. La restricci\u00f3n no se aplic\u00f3 en el lado del servidor porque el MimeTypeValidator se registr\u00f3 durante la construcci\u00f3n del formulario antes de que se aplicaran las propiedades concretas de definici\u00f3n del formulario, lo que result\u00f3 en que el validador nunca se a\u00f1adiera a la tuber\u00eda de procesamiento. Este problema afecta a las versiones 14.2.0-14.3.4 de TYPO3 CMS."}], "id": "CVE-2026-15305", "lastModified": "2026-10-24T21:10:00.130", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/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": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-15305", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-14T13:26:13.647808Z", "version": "2.0.3"}}]}, "published": "2026-07-14T13:18:16.270", "references": [{"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "url": "https://github.com/TYPO3/typo3/commit/817ad41cc9dd28aac0fc4d0fe16fc25d46dd554a"}, {"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "url": "https://github.com/TYPO3/typo3/commit/cfda21050398eb145211a4fa6f9988f10e43e10b"}, {"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "url": "https://typo3.org/security/advisory/typo3-core-sa-2026-020"}], "sourceIdentifier": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-351"}], "source": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[14.2.0,14.3.5)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "TYPO3 CMS", "source": "cna", "vendor": "TYPO3"}, "product": "typo3", "vendor": "typo3"}], "created": "2026-07-16T07:30:05.077851+00:00", "updated": "2026-09-30T05:00:09.645499+00:00", "vendors": ["typo3", "typo3$PRODUCT$typo3"]}