GSheetConnector For Ninja Forms <= 2.0.2 - Missing Authorization to Authenticated (Subscriber+) Google Sheets Access Code Update
- ID
- WPSEC-2026-1229
- Plugin
- GSheetConnector – Ninja Forms Google Sheets Connector, Export Form Submissions Instant Sync to Sheets (gsheetconnector-ninja-forms)
- Affected
- all versions before 3.0.0
- Remediation
- Update to 3.0.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
- Weakness
- CWE-862
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-18
- Attack surface
- GSheetConnector For Ninja Forms on WPSec AttackSurface
- Fix released
- Published
Description
The GSheetConnector For Ninja Forms plugin for WordPress is vulnerable to unauthorized modification of data via the verify_njforms_gs_integation AJAX action in all versions up to, and including, 2.0.2, due to a missing capability check. The handler only verifies a nonce, and Subscriber-level users can obtain that nonce from the plugin's settings page. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the site's stored Google OAuth access code and re-run authorization, replacing the site's Google Sheets connection with one tied to an attacker-controlled Google account and disrupting the sync of form submissions.
References
- https://wpsec.com/vuln/WPSEC-2026-1229/
- https://plugins.svn.wordpress.org/gsheetconnector-ninja-forms/tags/3.0.0/
- https://wordpress.org/plugins/gsheetconnector-ninja-forms/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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