Answer in brief
CVE-2026-76087 records a High severity (CVSS 8.2) vulnerability in Formie: Unauthenticated users can overwrite incomplete submissions via submit action. The current sources do not mark it as known exploited. The current feed maps verbb/formie (composer), verbb/formie (composer), verbb/formie (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps verbb/formie (composer), verbb/formie (composer), verbb/formie (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| verbb/formiecomposer | <2.2.23 | 2.2.23 |
| verbb/formiecomposer | >=3.0.0,<3.1.31 | 3.1.31 |
| verbb/formiegeneric | <2.2.23 || >=3.0.0 <3.1.31 | 2.2.23, 3.1.31 |
Published upstream
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 23, 2026
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.
Quoted source text, attributed separately from HOL analysis.