CVE-2026-47266

EUVD-2026-33422
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitHub_MCNA
8.7 HIGH
NETWORK
LOW
NONE
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
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
verbbformie
𝑥
< 2.2.21
CNA
Common Weakness Enumeration
References
https://github.com/verbb/formie/releases/tag/2.2.21
https://github.com/verbb/formie/releases/tag/3.1.26
https://github.com/verbb/formie/security/advisories/GHSA-pgxq-p76c-x9cg