rishav001

<p>Rishav AuthNova OTP adds a one-time-password verification layer to core WordPress authentication flows.</p>
<p>Features include:</p>
<ul>
<li>Configurable OTP length and charset (numeric or alphanumeric)</li>
<li>OTP expiry and retry limits with temporary lockouts</li>
<li>Login OTP verification step (after password check)</li>
<li>OTP-gated registration flow</li>
<li>OTP-gated password reset flow</li>
<li>Delivery via wp_mail, SendGrid, and Twilio</li>
<li>OTP storage using hashes (never plaintext)</li>
<li>Resend OTP with cooldown and challenge rotation</li>
</ul>
<p>Security highlights:</p>
<ul>
<li>OTP values are hashed before storage and are never saved as plaintext</li>
<li>OTP hashes use keyed HMAC storage and constant-time verification</li>
<li>OTP challenges expire automatically and enforce retry limits per challenge</li>
<li>Request throttling applies cooldown and exponential backoff per IP and identifier</li>
<li>Lockout windows reduce repeated invalid OTP submissions</li>
<li>Nonces are applied on sensitive form submissions</li>
<li>Public auth responses are intentionally generic to reduce account-enumeration leakage</li>
<li>Delivery uses synchronous-first send with bounded async retry fallback and challenge-level delivery status tracking</li>
</ul>
<p>Security limitations:</p>
<ul>
<li>This plugin does not replace passwords, HTTPS, WAF/rate-limiting at the edge, or secure hosting controls</li>
<li>OTP delivery depends on the configured email/SMS provider uptime and deliverability</li>
<li>Administrators should combine this plugin with standard WordPress hardening and monitoring</li>
</ul>
<p>Reliability notes:</p>
<ul>
<li>OTP delivery is attempted synchronously first to reduce silent failures</li>
<li>If synchronous delivery fails and background delivery is healthy, the plugin schedules bounded retries</li>
<li>If background delivery is unhealthy (for example DISABLE_WP_CRON), fallback queueing is skipped and users receive a retry-safe error</li>
<li>Resend cooldown state is server-authoritative and exposed through a status endpoint used by frontend countdown UX</li>
<li>Background queue payload contains only challenge ID (no raw OTP or destination data)</li>
</ul>
<h3>External Services</h3>
<p>This plugin can connect to third-party services to deliver OTP messages. These services are optional and only used if enabled in plugin settings.</p>
<h4>Twilio (SMS Delivery)</h4>
<ul>
<li>Service: Twilio Programmable Messaging API</li>
<li>Purpose: Send OTP codes by SMS</li>
<li>Data sent: destination phone number, sender phone number, OTP message text, account SID for authentication</li>
<li>Credential handling: Twilio credentials are stored in WordPress options and used only when sending OTP messages</li>
<li>When sent: when OTP delivery method includes SMS and an OTP is generated for login, registration, password reset, or resend</li>
<li>Why sent: to deliver time-sensitive OTP codes to the user by SMS</li>
<li>Terms of Service: https://www.twilio.com/legal/tos</li>
<li>Privacy Policy: https://www.twilio.com/en-us/legal/privacy</li>
</ul>
<h4>SendGrid (Email Delivery)</h4>
<ul>
<li>Service: SendGrid Mail Send API</li>
<li>Purpose: Send OTP codes by email</li>
<li>Data sent: recipient email address, sender email/name, message subject, OTP message body, API key for authentication</li>
<li>Credential handling: SendGrid API key is stored in WordPress options and used only when sending OTP messages</li>
<li>When sent: when email provider is set to SendGrid and an OTP is generated for login, registration, password reset, or resend</li>
<li>Why sent: to deliver time-sensitive OTP codes to the user by email</li>
<li>Terms of Service: https://sendgrid.com/policies/terms/</li>
<li>Privacy Policy: https://sendgrid.com/policies/privacy/</li>
</ul>
<h3>Configuration</h3>
<ol>
<li>Set OTP length, type, expiry, retry limit, and lockout duration.</li>
<li>Choose delivery method: Email, SMS, or Both.</li>
<li>Configure provider credentials for SendGrid and/or Twilio if needed.</li>
<li>Enable or disable OTP on login, registration, and password reset flows.</li>
</ol>


Rishav AuthNova OTP

OTP verification for WordPress login, registration, and password reset using email and SMS delivery.

Lalit Yadav

sumitkamboj53

<p>This plugin enhances the default WordPress login security by adding a One-Time Password (OTP) verification step via email:</p>
<ul>
<li>Users log in with their regular email/username and password.</li>
<li>If credentials are valid, an OTP is generated and emailed to the user.</li>
<li>A popup is shown on the same login page (<code>wp-login.php</code>) to enter the OTP.</li>
<li>Once the correct OTP is entered, the user is logged in.</li>
</ul>
<p>To help you get started, there’s a comprehensive video tutorial available that guides you through the process of setting.<br />
<span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/AZ6w1lkltOI?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span></p>
<h3>Features</h3>
<ul>
<li>Secure login via OTP sent to user’s email.</li>
<li>Role-based OTP enforcement.</li>
<li>Uses native wp-login.php form — no custom forms required.</li>
<li>Session-based OTP handling for security.</li>
<li>Expiring OTP (default: 40 seconds).</li>
<li>No third-party dependencies.</li>
</ul>
<h3>Donate</h3>
<p>If you find this plugin useful and want to support its development, you can make a donation via the following link:</p>
<p><a href="https://donate.stripe.com/3cI5kE7sv6ex30s5LB5kk2x" rel="nofollow ugc">Donate Here</a></p>
<p>Your donation helps to ensure that this plugin remains free and receives regular updates!</p>
<h3>Credits</h3>
<p>The plugin development was supported by [webnotics], [sumitkamboj53]. Contributions and feedback are always welcome.</p>
<h3>Documentation and Support</h3>
<p><strong><a href="https://webnotics.org/email-otp-login-with-default-login-form/" title="documentation" rel="nofollow ugc">Documentation</a></strong><br />
For detailed documentation, visit https://webnotics.org/email-otp-login-with-default-login-form/<br />
For support, please contact us at <a href="mailto:support@webnotics.solutions" rel="nofollow ugc">support@webnotics.solutions</a>.</p>
<h3>License</h3>
<p>This plugin is licensed under the GPLv2 or later.</p>


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