# reCAPTCHA for WooCommerce <= 1.4.7 - Unauthenticated CAPTCHA Bypass via WooCommerce Lost Password Form

- **ID:** WPSEC-2026-2839
- **Plugin:** reCAPTCHA for WooCommerce (`recaptcha-woo`), https://wordpress.org/plugins/recaptcha-woo/
- **Affected versions:** from 1.1.0 before 1.5.0
- **Fixed in:** 1.5.0 (Update to 1.5.0 or later.)
- **Severity:** Medium 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
- **Weakness:** CWE-693
- **Usage among sites WPSec scans:** plugin Medium, affected versions Medium (as of 2026-11-10)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/recaptcha-woo
- **Fix released:** 2026-11-09
- **Published:** 2026-11-10
- **URL:** https://wpsec.com/vuln/WPSEC-2026-2839/

## Description

The reCAPTCHA for WooCommerce plugin for WordPress is vulnerable to a CAPTCHA bypass on the WooCommerce lost password (Reset Password) form in all versions up to, and including, 1.4.7. The check only ran when the 'woocommerce-lost-password-nonce' field was present, but WooCommerce also accepts the nonce as '_wpnonce'. The check was also skipped whenever '/wp-login.php' appeared anywhere in the request URI, for example in the query string of a request to admin-ajax.php. This makes it possible for unauthenticated attackers to submit automated password reset requests without solving the reCAPTCHA.

## References

- https://wpsec.com/vuln/WPSEC-2026-2839/
- https://plugins.svn.wordpress.org/recaptcha-woo/tags/1.5.0/
- https://wordpress.org/plugins/recaptcha-woo/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-2839/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.