GHSA-x7m9-mwc2-g6w2
Formie: Pre-authenticated server-side template injection in Hidden fields
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | verbb/formie | >= 3.0.0-beta.1, < 3.1.24 | 3.1.24 |
| Packagist | verbb/formie | < 2.2.20 | 2.2.20 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
- 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).
- Sites with public Formie forms that include at least one Hidden field with that configuration.
- No CP login for the reported chain.
### Patches
- [2.2.20](https://github.com/verbb/formie/releases/tag/2.2.20), [3.1.24](https://github.com/verbb/formie/releases/tag/3.1.24)
### Workarounds
- Temporarily remove Hidden fields from public forms or switch Hidden default away from Custom where feasible
- Otherwise, upgrade to patched versions
References
External links from the advisory. They lead to third-party sites.
- https://github.com/verbb/formie/security/advisories/GHSA-x7m9-mwc2-g6w2
- https://nvd.nist.gov/vuln/detail/CVE-2026-45697
- https://github.com/verbb/formie/commit/f690d5623163ce2a95da305238d6367575486ee3
- https://github.com/verbb/formie
- https://github.com/verbb/formie/releases/tag/2.2.20
- https://github.com/verbb/formie/releases/tag/3.1.24