Title: CS BioLogin – Seamless Biometric Authentication
Author: Concatstring Solutions
Published: <strong>June 18, 2026</strong>
Last modified: June 18, 2026

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# CS BioLogin – Seamless Biometric Authentication

 By [Concatstring Solutions](https://profiles.wordpress.org/concatstring/)

[Download](https://downloads.wordpress.org/plugin/cs-biologin-seamless-biometric-authentication.1.0.0.zip)

 * [Details](https://wordpress.org/plugins/cs-biologin-seamless-biometric-authentication/#description)
 * [Reviews](https://wordpress.org/plugins/cs-biologin-seamless-biometric-authentication/#reviews)
 *  [Installation](https://wordpress.org/plugins/cs-biologin-seamless-biometric-authentication/#installation)
 * [Development](https://wordpress.org/plugins/cs-biologin-seamless-biometric-authentication/#developers)

 [Support](https://wordpress.org/support/plugin/cs-biologin-seamless-biometric-authentication/)

## Description

**CS BioLogin** adds passwordless sign-in to WordPress using the WebAuthn standard(
FIDO2 / passkeys). Visitors can authenticate with Face ID, Touch ID, Windows Hello,
or a platform fingerprint reader. Biometric templates never leave the user’s device;
only public key credentials are stored in your WordPress database.

#### What this plugin does

 * Adds a **Sign in with Biometrics** option on the WordPress login screen (with
   optional password fallback).
 * Lets logged-in users **register, rename, update, and remove** passkeys from their
   profile, a front-end shortcode page, or WooCommerce My Account.
 * Provides an admin screen for **settings, security logs, and per-user device management**.
 * Applies **rate limiting and lockout** on authentication attempts.

#### What this plugin does NOT do

 * It does **not** send user data, credentials, or biometrics to third-party servers.
   All verification runs on your site over HTTPS.
 * It does **not** store fingerprint or face images—only WebAuthn public keys and
   device metadata you configure.

#### How it works

 1. **Administrator** enables the plugin under **Settings  CS BioLogin** and chooses
    which roles may use biometrics.
 2. **User** opens their profile (WordPress admin profile, `[csbisebi_device_manager]`
    page, or WooCommerce **My Account  CS BioLogin**) and clicks **Add Biometric Device**.
    The browser shows the OS passkey/biometric prompt.
 3. **Login** — On `wp-login.php` (or WooCommerce login), the user chooses biometric
    sign-in. The plugin issues a WebAuthn challenge via the REST API, verifies the 
    signed response, and creates a normal WordPress session.

REST routes live under `csbisebi-biometric-login/v1` on your own site (for example`/
wp-json/csbisebi-biometric-login/v1/auth/options`). No external API keys are required.

#### WooCommerce

When WooCommerce is active, CS BioLogin adds a **My Account** tab, checkout/account
login prompts, and automatic use of the account area instead of a standalone management
page.

#### Requirements

 * WordPress 6.2 or later
 * PHP 7.4+ with OpenSSL
 * **HTTPS** on production (WebAuthn requires a secure context; `localhost` and `*.
   local` are allowed for development)

#### Privacy and data storage

 * Biometric samples stay on the user’s device.
 * The plugin stores passkey public keys, optional device labels, timestamps, and
   security log entries in your WordPress database.
 * Uninstalling the plugin (when data removal is enabled via uninstall) drops the
   custom credentials table and plugin options.

## Screenshots

[⌊Biometric login popup on the WordPress login page.⌉⌊Biometric login popup on the
WordPress login page.⌉[

Biometric login popup on the WordPress login page.

[⌊Device management in WooCommerce My Account.⌉⌊Device management in WooCommerce
My Account.⌉[

Device management in WooCommerce My Account.

[⌊Registration flow with browser prompt.⌉⌊Registration flow with browser prompt.⌉[

Registration flow with browser prompt.

[⌊Admin settings page with security options.⌉⌊Admin settings page with security 
options.⌉[

Admin settings page with security options.

[⌊Security logs showing login events.⌉⌊Security logs showing login events.⌉[

Security logs showing login events.

## Installation

 1. Upload the plugin folder `cs-biologin-seamless-biometric-authentication` to `/wp-
    content/plugins/` (the zip must contain `readme.txt` and `cs-biologin.php` at the
    root of that folder—not inside a `trunk/` subfolder).
 2. Activate **CS BioLogin – Seamless Biometric Authentication** on the **Plugins**
    screen.
 3. Ensure your site uses **HTTPS** in production.
 4. Go to **Settings  CS BioLogin** and save your preferences.
 5. Log in as a test user, open **Users  Profile** (or WooCommerce **My Account  CS
    BioLogin**), and register a passkey before testing front-end login.

## FAQ

### Does this store my fingerprint or face on the server?

No. WebAuthn keeps biometrics on the device. The site only stores a public key used
to verify future logins.

### Does the plugin call external services?

No. Challenges, verification, and credential storage all run on your WordPress installation.
JavaScript and CSS are bundled with the plugin (no third-party CDNs).

### Is HTTPS required?

Yes, for production sites. The plugin shows an admin notice if HTTPS is missing (
localhost and `.local` hosts are exempt for development).

### Can users still log in with a password?

Yes, when **Allow Password Fallback** is enabled in settings.

### Can visitors create WordPress accounts through the plugin?

Only if **Settings  General  Membership  Anyone can register** is enabled, or if
you explicitly enable **Allow REST account registration when WordPress registration
is disabled** under **Settings  CS BioLogin**. Account creation is rate-limited 
and disabled by default otherwise.

### Is WooCommerce supported?

Yes. Device management appears under **My Account**, and biometric login can appear
on WooCommerce login forms when enabled.

### Which browsers are supported?

Recent Chrome, Safari, Edge, and Firefox on desktop and mobile, where the OS provides
a platform authenticator or passkey store. Unsupported browsers can hide the login
button via settings.

### Password managers block the biometric prompt. What should I do?

Extensions such as 1Password, Bitwarden, or LastPass may intercept passkey prompts.
Enable passkey support in the manager or disable autofill for your site so the native
OS dialog (Touch ID, Face ID, Windows Hello) can appear.

### Can administrators manage user devices?

Yes. Use **Settings  CS BioLogin  User Management** to reset devices, view logs,
and register passkeys on behalf of users (with appropriate capability checks).

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“CS BioLogin – Seamless Biometric Authentication” is open source software. The following
people have contributed to this plugin.

Contributors

 *   [ Concatstring Solutions ](https://profiles.wordpress.org/concatstring/)
 *   [ Adarsh Verma ](https://profiles.wordpress.org/shobhit2412/)
 *   [ Kakshak Kalaria ](https://profiles.wordpress.org/kakshak/)
 *   [ Sumit Tejani ](https://profiles.wordpress.org/sumittejani/)
 *   [ Hardik Patel ](https://profiles.wordpress.org/hlakkad1998/)
 *   [ Vrutika Darji ](https://profiles.wordpress.org/vrutti22/)

[Translate “CS BioLogin – Seamless Biometric Authentication” into your language.](https://translate.wordpress.org/projects/wp-plugins/cs-biologin-seamless-biometric-authentication)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/cs-biologin-seamless-biometric-authentication/),
check out the [SVN repository](https://plugins.svn.wordpress.org/cs-biologin-seamless-biometric-authentication/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/cs-biologin-seamless-biometric-authentication/)
by [RSS](https://plugins.trac.wordpress.org/log/cs-biologin-seamless-biometric-authentication/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0.0

 * Initial release on the WordPress Plugin Directory.
 * WebAuthn / FIDO2 / Passkeys registration and authentication (ES256 and RS256).
 * Passwordless login on the WordPress login screen with optional password fallback.
 * WooCommerce: My Account endpoint, checkout and account login popups, and device
   management UI.
 * Multi-device support with rename, update passkey, remove, and duplicate-device
   handling.
 * Admin settings (roles, force biometric, rate limits, lockout, UI options) plus
   security event logs and user device management.
 * Passkey setup reminder banner for users without a registered device.
 * No external services or CDNs; credentials stored locally in the database.

## Meta

 *  Version **1.0.0**
 *  Last updated **12 hours ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 6.2 or higher **
 *  Tested up to **7.0**
 *  PHP version ** 7.4 or higher **
 * Tags
 * [biometric](https://wordpress.org/plugins/tags/biometric/)[fingerprint](https://wordpress.org/plugins/tags/fingerprint/)
   [login](https://wordpress.org/plugins/tags/login/)[security](https://wordpress.org/plugins/tags/security/)
   [webauthn](https://wordpress.org/plugins/tags/webauthn/)
 *  [Advanced View](https://wordpress.org/plugins/cs-biologin-seamless-biometric-authentication/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/cs-biologin-seamless-biometric-authentication/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/cs-biologin-seamless-biometric-authentication/reviews/)

## Contributors

 *   [ Concatstring Solutions ](https://profiles.wordpress.org/concatstring/)
 *   [ Adarsh Verma ](https://profiles.wordpress.org/shobhit2412/)
 *   [ Kakshak Kalaria ](https://profiles.wordpress.org/kakshak/)
 *   [ Sumit Tejani ](https://profiles.wordpress.org/sumittejani/)
 *   [ Hardik Patel ](https://profiles.wordpress.org/hlakkad1998/)
 *   [ Vrutika Darji ](https://profiles.wordpress.org/vrutti22/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/cs-biologin-seamless-biometric-authentication/)