{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-76087", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-18T21:17:32.200Z", "datePublished": "2026-09-23T18:35:45.304Z", "dateUpdated": "2026-09-23T18:35:45.304Z"}, "containers": {"cna": {"title": "Formie: Unauthenticated users can overwrite incomplete submissions via submit action", "problemTypes": [{"descriptions": [{"cweId": "CWE-639", "lang": "en", "description": "CWE-639: Authorization Bypass Through User-Controlled Key", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/verbb/formie/security/advisories/GHSA-584p-f93j-wpgc", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/verbb/formie/security/advisories/GHSA-584p-f93j-wpgc"}, {"name": "https://github.com/verbb/formie/commit/323c2fe647a76fbccadf749728ee4ad9420efee1", "tags": ["x_refsource_MISC"], "url": "https://github.com/verbb/formie/commit/323c2fe647a76fbccadf749728ee4ad9420efee1"}, {"name": "https://github.com/verbb/formie/commit/78a298ac3baf85ac283988dfce9cd42c9b958f16", "tags": ["x_refsource_MISC"], "url": "https://github.com/verbb/formie/commit/78a298ac3baf85ac283988dfce9cd42c9b958f16"}, {"name": "https://github.com/verbb/formie/releases/tag/2.2.23", "tags": ["x_refsource_MISC"], "url": "https://github.com/verbb/formie/releases/tag/2.2.23"}, {"name": "https://github.com/verbb/formie/releases/tag/3.1.31", "tags": ["x_refsource_MISC"], "url": "https://github.com/verbb/formie/releases/tag/3.1.31"}], "affected": [{"vendor": "verbb", "product": "formie", "versions": [{"version": "< 2.2.23", "status": "affected"}, {"version": ">= 3.0.0, < 3.1.31", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-23T18:35:45.304Z"}, "descriptions": [{"lang": "en", "value": "Formie is a Craft CMS plugin for creating forms. Prior to 2.2.23 and 3.1.31, Formie's anonymous formie/submissions/submit action in SubmissionsController::actionSubmit trusts a client-supplied submissionId when loading an incomplete submission without session binding, ownership validation, or a valid submissionEditToken. An unauthenticated attacker can enumerate sequential IDs and overwrite or hijack another user's in-progress multi-page or save-for-later submission, and the modified data can be persisted and forwarded through notifications or integrations when the submission is completed. This is an incomplete remediation of CVE-2026-47266 because that earlier change validated edit tokens for save-submission but did not protect submit. Completed submissions are excluded by the isIncomplete filter. This issue is fixed in versions 2.2.23 and 3.1.31."}], "source": {"advisory": "GHSA-584p-f93j-wpgc", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "formie", "vendor": "verbb", "versions": [{"status": "affected", "version": "< 2.2.23"}, {"status": "affected", "version": ">= 3.0.0, < 3.1.31"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Formie is a Craft CMS plugin for creating forms. Prior to 2.2.23 and 3.1.31, Formie's anonymous formie/submissions/submit action in SubmissionsController::actionSubmit trusts a client-supplied submissionId when loading an incomplete submission without session binding, ownership validation, or a valid submissionEditToken. An unauthenticated attacker can enumerate sequential IDs and overwrite or hijack another user's in-progress multi-page or save-for-later submission, and the modified data can be persisted and forwarded through notifications or integrations when the submission is completed. This is an incomplete remediation of CVE-2026-47266 because that earlier change validated edit tokens for save-submission but did not protect submit. Completed submissions are excluded by the isIncomplete filter. This issue is fixed in versions 2.2.23 and 3.1.31."}], "id": "CVE-2026-76087", "lastModified": "2026-09-23T19:19:14.570", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-23T19:19:14.570", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/verbb/formie/commit/323c2fe647a76fbccadf749728ee4ad9420efee1"}, {"source": "security-advisories@github.com", "url": "https://github.com/verbb/formie/commit/78a298ac3baf85ac283988dfce9cd42c9b958f16"}, {"source": "security-advisories@github.com", "url": "https://github.com/verbb/formie/releases/tag/2.2.23"}, {"source": "security-advisories@github.com", "url": "https://github.com/verbb/formie/releases/tag/3.1.31"}, {"source": "security-advisories@github.com", "url": "https://github.com/verbb/formie/security/advisories/GHSA-584p-f93j-wpgc"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-639"}, {"lang": "en", "value": "CWE-862"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-09-23T21:00:13.739612+00:00", "updated": "2026-09-23T21:00:13.739618+00:00", "vendors": []}