Vulnerabilities / Alpha Addons for Gravity Forms / WPSEC-2026-1906
Alpha Addons for Gravity Forms <= 1.0.3 - Unauthenticated CAPTCHA Bypass via Math Captcha Field
Medium 5.3
CWE-294Fixed in 1.0.4
- ID
- WPSEC-2026-1906
- Plugin
- Alpha Addons for Gravity Forms (alpha-addons-for-gravity-forms)
- Affected
- all versions before 1.0.4
- Remediation
- Update to 1.0.4 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness
- CWE-294
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-10-29
- Attack surface
- Alpha Addons for Gravity Forms on WPSec AttackSurface
- Fix released
- Published
Description
The Alpha Addons for Gravity Forms plugin for WordPress is vulnerable to CAPTCHA bypass via the Math Captcha field in all versions up to, and including, 1.0.3, due to the captcha hash being derived only from the numeric answer and a site-wide secret. The hash never expires, is not tied to the question shown, and is not invalidated after use. This makes it possible for unauthenticated attackers to replay one solved answer and hash pair without limit and submit forms protected by the Math Captcha field automatically.
References
- https://wpsec.com/vuln/WPSEC-2026-1906/
- https://plugins.svn.wordpress.org/alpha-addons-for-gravity-forms/tags/1.0.4/
- https://wordpress.org/plugins/alpha-addons-for-gravity-forms/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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