# CVE-2026-47266: Verbb Formie authorization bypass in form submissions

Source: https://junglewise.ai/threats/cve-2026-47266-verbb-formie-authorization-bypass-in-form-submissions  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-29. Updated: 2026-05-29  
License: CC BY 4.0 with a link back

CVE-2026-47266 · Severity: high · CVSS 4 · Published 2026-05-29

Formie is a plugin for Craft CMS used to create and manage web forms. A security flaw allows unauthorized individuals to modify or overwrite existing form submissions by guessing or obtaining a submission ID. This could lead to the corruption of customer data or the unauthorized alteration of records submitted through the website.

Technologies: [verbb/formie (Packagist)](https://junglewise.ai/threats/technologies/verbb-formie), [Verbb Formie](https://junglewise.ai/threats/technologies/formie). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist), [Verbb](https://junglewise.ai/threats/vendors/verbb).

## Quick answers

**Is CVE-2026-47266 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47266 being exploited in the wild.

**How severe is CVE-2026-47266?** High severity, with a CVSS score of 4, published 29 May 2026.

**Which products and versions are affected?** verbb/formie (Packagist) ECOSYSTEM:introduced=3.0.0,fixed=3.1.26; Verbb Formie < 2.2.21, < 3.1.26, < 2.2.21, >= 3.0.0, < 3.1.26.

**Is there a fix for CVE-2026-47266?** Yes. verbb/formie (Packagist): upgrade to 3.1.26 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-47266 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-47266?** Check whether you run verbb/formie (Packagist) or Verbb Formie at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- verbb/formie (Packagist): upgrade to 3.1.26 or later

  ```sh
  composer require verbb/formie:^3.1.26
  ```


## Technical details

The vulnerability is an Insecure Direct Object Reference (IDOR) classified as CWE-639 (Authorization Bypass Through User-Controlled Key). The 'formie/submissions/save-submission' endpoint failed to properly validate the authorization of unauthenticated users attempting to edit existing records. By sending a POST request with a specific submission ID, an attacker can modify the data of that submission without any prior authentication or user interaction. The fix introduces a 'submissionEditToken' to ensure that only authorized requests can modify existing entries.

## Affected products

- Verbb Formie < 2.2.21, >= 3.0.0, < 3.1.26

## Identifiers

- CVE-2026-47266
- GHSA-pgxq-p76c-x9cg

## Timeline

- 2026-05-19: patched: Versions 2.2.21 and 3.1.26 released
- 2026-05-29: advisory: GitHub Advisory and NVD record published

## References

- [https://github.com/verbb/formie/security/advisories/GHSA-pgxq-p76c-x9cg](https://github.com/verbb/formie/security/advisories/GHSA-pgxq-p76c-x9cg)
- [https://github.com/verbb/formie/releases/tag/2.2.21](https://github.com/verbb/formie/releases/tag/2.2.21)
- [https://github.com/verbb/formie/releases/tag/3.1.26](https://github.com/verbb/formie/releases/tag/3.1.26)
- [https://api.github.com/repos/verbb/formie/security-advisories/GHSA-pgxq-p76c-x9cg](https://api.github.com/repos/verbb/formie/security-advisories/GHSA-pgxq-p76c-x9cg)

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- [Verbb Formie missing authorization on sent notification resend modal](https://junglewise.ai/threats/cve-2026-76089-verbb-formie-missing-authorization-on-sent-notification-resend)
- [Verbb Formie unauthenticated submission hijacking via submit action](https://junglewise.ai/threats/cve-2026-76087-verbb-formie-unauthenticated-submission-hijacking-via-submit)
- [Craft Formie integration form-settings SSRF and credential exfiltration](https://junglewise.ai/threats/cve-2026-76086-craft-formie-integration-form-settings-ssrf-and-credential)
- [Verbb Formie missing authorization in administrative settings](https://junglewise.ai/threats/verbb-formie-missing-authorization-in-administrative-settings-0ab8bf10)
- [Verbb Formie server-side template injection in Hidden fields](https://junglewise.ai/threats/cve-2026-52889-verbb-formie-server-side-template-injection-in-hidden-fields)