Vulnerability · Published May 29, 2026 · Assigned by GitHub_M
CVE-2026-47266Formie: Unauthenticated front-end submission editing can overwrite existing submissions
High 8.7
In plain English
A high-severity authorization bypass via user-controlled key in formie from verbb. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.3%top 75.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | verbb/formie | 3.1.26 | GHSA-pgxq-p76c-x9cg |
| Packagist | verbb/formie | 2.2.21 | GHSA-pgxq-p76c-x9cg |
Affected products (as reported)
Weakness: CWE-639 · Vector: 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
References
- https://github.com/verbb/formie/security/advisories/GHSA-pgxq-p76c-x9cg x_refsource_CONFIRM
- https://github.com/verbb/formie/releases/tag/2.2.21 x_refsource_MISC
- https://github.com/verbb/formie/releases/tag/3.1.26 x_refsource_MISC