CVE-2026-76086
Received Received - Intake

Server-Side Request Forgery in Formie Craft CMS Plugin

Publication date: 2026-09-23

Last updated on: 2026-09-23

Assigner: GitHub, Inc.

Description
Formie is a Craft CMS plugin for creating forms. Prior to 2.2.23 and 3.1.31, Formie's formie/integrations/form-settings control panel action in IntegrationsController::actionFormSettings is reachable without the required form integration permissions and passes request-supplied settings to a configured integration. An authenticated attacker can replace outbound host properties such as apiUrl while the server uses stored API keys or OAuth tokens, causing non-blind server-side requests to an attacker-controlled or internal host and returning the remote response. This residual flaw remained because the permission gate added in version 3.1.28 excluded the form-settings action. Sites that permit low-privileged or front-end user authentication can therefore expose integration credentials and internal network responses. This issue is fixed in versions 2.2.23 and 3.1.31.

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Meta Information

Published
2026-09-23
Last Modified
2026-09-23
Generated
2026-09-24
AI Q&A
2026-09-23
EPSS Evaluated
N/A
NVD
CVE-2026-76086
EUVD
EUVD-2026-85545

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
formie formie to 2.2.23 (inc)
formie formie to 3.1.31 (inc)
verbb formie to 2.2.23 (inc)
verbb formie to 3.1.31 (inc)
verbb formie to 3.1.31 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-915 The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified.
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
CWE-918 The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

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Executive Summary

CVE-2026-76086 is a missing authorization vulnerability in the Formie plugin for Craft CMS. It affects versions prior to 2.2.23 and 3.1.31. The flaw allows authenticated users, even with low privileges, to access the formie/integrations/form-settings endpoint without proper permissions. This enables Server-Side Request Forgery (SSRF) attacks where attackers can manipulate the apiUrl setting to redirect requests to attacker-controlled or internal hosts, potentially exposing stored integration credentials like API keys or OAuth tokens.

Detection Guidance

Check Formie plugin versions with composer show verbb/formie or inspect the plugin directory for version files. Review server logs for unusual outbound requests from the Formie integration endpoints, particularly to unexpected hosts. Inspect network traffic for SSRF indicators like apiUrl modifications in requests to formie/integrations/form-settings.

Impact Analysis

An attacker could exploit this to access sensitive integration credentials, such as API keys or OAuth tokens, stored in the Formie plugin. They could also make unauthorized requests to internal systems, potentially leading to data breaches or further network compromise. The impact includes credential theft, unauthorized data access, and potential disruption of form-related workflows.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection principles and HIPAA's security requirements for protected health information. Exposure of API keys or OAuth tokens may result in breaches of confidentiality, integrity, and availability of personal or health data, potentially leading to regulatory penalties and loss of trust.

Mitigation Strategies

Update Formie to version 2.2.23 or 3.1.31 or later immediately. Restrict control panel access to trusted users only. Disable front-end user registration if not required. Review and revoke any potentially exposed integration credentials. Monitor for unauthorized changes to integration settings.

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