verbb/formie · Security
formie's unauthenticated front-end submission editing can overwrite existing submissions
- GHSA ID
- GHSA-pgxq-p76c-x9cg
- CVE ID
- CVE-2026-47266
- Severity
- high
- Published
- Updated
- CVSS v4
- 8.7 · 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description
Impact
Unauthenticated users could modify existing submissions by posting a known or guessed submission ID to formie/submissions/save-submission.
Patches
Workarounds
Block unauthenticated access to actions/formie/submissions/save-submission, or disable/customize front-end submission editing until patched.
Credit
formie extends many thanks to:
- Florian (Cyber Security Engineer, arcade solutions ag)
- Contact: [email protected]
CWEs
- CWE-639 · Authorization Bypass Through User-Controlled Key