CVE-2026-76086

01/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.

02/References6

• github.com/advisories/GHSA-cvpc-hccg-wmw4
• github.com/verbb/formie/commit/6735fe4ae8f6a2a76930716ad7876b23…
• github.com/verbb/formie/commit/dde7799dfa7e4d0a11e28754ad8544db…
• github.com/verbb/formie/releases/tag/2.2.23
• github.com/verbb/formie/releases/tag/3.1.31
• github.com/verbb/formie/security/advisories/GHSA-v3f3-cmj4-cvj9