CVE-2026-47266 PUBLISHED

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

Assigner: GitHub_M
Reserved: 18.05.2026 Published: 29.05.2026 Updated: 29.05.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	verbb
Product	formie
Versions	Version < 2.2.21 is affected Version >= 3.0.0-beta.1, < 3.1.26 is affected

References

Problem Types

CWE-639: Authorization Bypass Through User-Controlled Key CWE