High severity · published May 29, 2026
CVE-2026-47266
Formie: Unauthenticated front-end submission editing can overwrite existing submissions
8.7
CVSS
0.3%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
formie · verbb
< 2.2.21; >= 3.0.0-beta.1, < 3.1.26 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47266
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47266
github.com
https://github.com/verbb/formie/releases/tag/2.2.21
github.com
https://github.com/verbb/formie/releases/tag/3.1.26
github.com
https://github.com/verbb/formie/security/advisories/GHSA-pgxq-p76c-x9cg
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