CVE-2026-47266

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

Published May 29, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-pgxq-p76c-x9cg formie's unauthenticated front-end submission editing can overwrite existing submissions
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Verbb
Verbb formie
Vendors & Products Verbb
Verbb formie
Type Values Removed Values Added
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.
Title Formie: Unauthenticated front-end submission editing can overwrite existing submissions
Weaknesses CWE-639
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 29, 2026, 9:37 PM
Reserved
May 18, 2026, 11:03 PM
Status
Deferred
Published
May 29, 2026, 8:16 PM
Modified
Jul 22, 2026, 6:10 AM