{
    "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": "2026-09-24T14:12:18.128Z"
    },
    "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"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-24T14:12:07.675345Z",
                                "id": "CVE-2026-76087",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "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": "2026-09-24T14:12:18.128Z"
                }
            }
        ]
    }
}