CVE-2026-47266

Formie: Unauthenticated front-end submission editing can overwrite existing submissions

HIGH

8.7

CVSS Score

Published: May 29, 2026 at 07:03 PM UTC

Updated: July 22, 2026 at 06:27 AM UTC

1 product affected across 1 vendorFormie

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Severity

HIGH8.7

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

Formie is a Craft CMS plugin for creating forms. Prior to 2.2.21 and 3.1.26, unauthenticated users could modify existing submissions by posting a known or guessed submission ID to formie/submissions/save-submission. This vulnerability is fixed in 2.2.21 and 3.1.26.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Formie · Verbbcraft-cms

60%

v < 2.2.21v < 3.1.26

Affected range stops below 2.2.21, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.1.26, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_CONFIRM

Source: cverecord

https://github.com/verbb/formie/security/advisories/GHSA-pgxq-p76c-x9cg

x_refsource_MISC

Source: cverecord

https://github.com/verbb/formie/releases/tag/2.2.21

x_refsource_MISC

Source: cverecord

https://github.com/verbb/formie/releases/tag/3.1.26

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHGitHub_M

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-639

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