# CVE-2026-110620: Formbricks authorization bypass in server actions

Source: https://junglewise.ai/threats/cve-2026-110620-formbricks-before-4-9-0-contains-an-authorization-bypass  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-14. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-110620 · Severity: medium · CVSS 6.8 · Published 2026-10-14

Formbricks is an open-source survey platform similar to Qualtrics. An authenticated user in any organization can bypass access controls to modify surveys, segments, quotas, and invitations belonging to other organizations by substituting victim resource IDs into their own organization context. This allows unauthorized data manipulation and deletion across organization boundaries.

Technologies: [Formbricks](https://junglewise.ai/threats/technologies/formbricks). Vendors: [Formbricks](https://junglewise.ai/threats/vendors/formbricks).

## Quick answers

**Is CVE-2026-110620 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-110620 being exploited in the wild.

**How severe is CVE-2026-110620?** Medium severity, with a CVSS score of 6.8, published 14 October 2026.

**Which products and versions are affected?** Formbricks before 4.9.0.

**Is there a fix for CVE-2026-110620?** Yes: fixed in 4.9.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-110620 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-110620?** Check whether you run Formbricks 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

- Fixed in 4.9.0

## Technical details

The vulnerability is an authorization bypass in server actions (resetSurveyAction, updateSegmentAction) that fail to verify resource ownership against the supplied organizationId. An authenticated owner or manager of any organization can craft requests pairing their own organization ID with victim resource IDs to achieve privilege escalation. The flaw allows deletion of survey responses, modification of segments and quotas, and alteration of pending invitations across organization boundaries.

## Affected products

- Formbricks Formbricks before 4.9.0

## Timeline

- 2026-10-14: disclosed

## References

- [https://github.com/formbricks/formbricks](https://github.com/formbricks/formbricks)
- [https://github.com/formbricks/formbricks/blob/4.8.7/apps/web/app/(app)/environments/%5BenvironmentId%5D/surveys/%5BsurveyId%5D/(analysis)/summary/actions.ts](https://github.com/formbricks/formbricks/blob/4.8.7/apps/web/app/(app)/environments/%5BenvironmentId%5D/surveys/%5BsurveyId%5D/(analysis)/summary/actions.ts)

## Related threats

- [Formbricks stored XSS in survey Custom Head Scripts](https://junglewise.ai/threats/cve-2026-105090-formbricks-before-5-4-4-and-6-before-6-0-1-allows-stored-xss-the)
- [Formbricks improper access control in Survey Handler](https://junglewise.ai/threats/cve-2026-14792-formbricks-improper-access-control-in-survey-handler)