{"id":"CVE-2026-76087","title":"Formie is a Craft CMS plugin for creating forms","summary":"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 subm…","severity":"high","cvss":8.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","cwe":["CWE-639","CWE-862"],"vendor":"verbb","product":"verbb/formie","affected":["verbb/formie >= 3.0.0, < 3.1.31","verbb/formie < 2.2.23"],"patched":["verbb/formie 3.1.31","verbb/formie 2.2.23"],"published":"2026-09-23","updated":"2026-09-23","sourceUpdated":"2026-09-23T19:19:14.570","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-76087","references":[{"url":"https://github.com/verbb/formie/commit/323c2fe647a76fbccadf749728ee4ad9420efee1","label":"security-advisories@github.com"},{"url":"https://github.com/verbb/formie/commit/78a298ac3baf85ac283988dfce9cd42c9b958f16","label":"security-advisories@github.com"},{"url":"https://github.com/verbb/formie/releases/tag/2.2.23","label":"security-advisories@github.com"},{"url":"https://github.com/verbb/formie/releases/tag/3.1.31","label":"security-advisories@github.com"},{"url":"https://github.com/verbb/formie/security/advisories/GHSA-584p-f93j-wpgc","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-584p-f93j-wpgc"}],"tags":["nvd","ghsa","composer","cve.org"],"aliases":["GHSA-584p-f93j-wpgc"],"ecosystem":"composer","ingestedAt":"2026-09-23T19:31:04.465Z","slug":"CVE-2026-76087","body":"## Overview\n\nFormie 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-76087)\n\nAffected packages:\n\n- `verbb/formie >= 3.0.0, < 3.1.31`\n- `verbb/formie < 2.2.23`\n\nPatched in:\n\n- `verbb/formie 3.1.31`\n- `verbb/formie 2.2.23`\n\nSource: https://github.com/advisories/GHSA-584p-f93j-wpgc","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}