CVE-2026-45697
Critical
Description
Formie is a Craft CMS plugin for creating forms. Prior to 2.2.20 and 3.1.24, unauthenticated users could submit crafted values into Hidden fields (with Default value → Custom) that were evaluated as Twig during submission handling, which could lead to serious compromise of the Craft site (depending on template/sandbox behavior). This vulnerability is fixed in 2.2.20 and 3.1.24.
SeverityCritical
CVSS9.8
Exploit probability—
ProductVerbb/formie
PublishedMay 29, 2026
First seenMay 29, 2026
Weakness typeCWE-94Code injectionCWE-693CWE-693CWE-1336CWE-1336
How to fix
Update
- verbb/formie3.1.24, 2.2.20 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| verbb/formiePackagist | 3.0.0-beta.1 ≤ v < 3.1.24, v < 2.2.20 | 3.1.24, 2.2.20 |
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