CVE
CVE-2026-45697
Formie: Pre-authenticated server-side template injection in Hidden fields
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
Workarounds
- Temporarily remove Hidden fields from public forms or switch Hidden default away from Custom where feasible
- Otherwise, upgrade to patched versions
Package Versions Affected
Package Version
patch Availability
No items found.
Automatically patch vulnerabilities without upgrading
Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request
CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-
Related Resources
No items found.
References
https://github.com/verbb/formie/security/advisories/GHSA-x7m9-mwc2-g6w2, 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
Basic Information
Ecosystem
