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High 8.7Published May 29, 2026

CVE-2026-47266Formie: Unauthenticated front-end submission editing can overwrite existing submissions

Updated under an hour ago ()

Does this affect you?

It affects verbb formie. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
8.7 HIGH (v4.0, CNA)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
Weakness (CWE)
CWE-639
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Deferred
Record last updated
May 29, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
verbb formie
verbb:formie (from the name)
before 2.2.21; from 3.0.0-beta.1, < 3.1.26
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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