cozyvision1 SMS Alert Plugin up to 3.9.7 on WordPress processRegistration billing_phone improper authentication

Summaryinfo

A vulnerability categorized as critical has been discovered in cozyvision1 SMS Alert Plugin up to 3.9.7. This vulnerability affects the function processRegistration. Such manipulation of the argument billing_phone leads to improper authentication. This vulnerability is traded as CVE-2026-15014. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in cozyvision1 SMS Alert Plugin up to 3.9.7. It has been rated as critical. Affected by this issue is the function processRegistration. The manipulation of the argument billing_phone with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-15014 since 07/08/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/28/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-49709). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• cozyvision1

Name

• SMS Alert Plugin

Version

• 3.9.0
• 3.9.1
• 3.9.2
• 3.9.3
• 3.9.4
• 3.9.5
• 3.9.6
• 3.9.7

CPE 2.3info

• 🔒
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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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