CVE-2025-3876

SMS Alert Order Notifications – WooCommerce <= 3.8.1 - Authenticated (Subscriber+) Privilege Escalation via handleWpLoginCreateUserAction Function

2025-05-09 21:58
wesley (wcraft)

Strategic Overview

Status
Patched in 3.8.2
Affected Plugin
SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery
Affected Version
<= 3.8.1
CVSS
8.8High
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2025-3876
View all SMS Alert – SMS & OTP for WooCommerce, Order Notifications & Abandoned Cart Recovery vulnerabilities

At a glance

CVE-2025-3876 is a high-severity Missing Authorization vulnerability in the SMS Alert WordPress plugin, affecting versions <= 3.8.1. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 3.8.2; sites on affected versions should update now. Disclosed May 2025, reported by wesley (wcraft).

Vulnerability Overview

The SMS Alert Order Notifications – WooCommerce plugin for WordPress is vulnerable to Privilege Escalation due to insufficient user OTP validation in the handleWpLoginCreateUserAction() function in all versions up to, and including, 3.8.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to impersonate any account by supplying its username or email and elevate their privileges to that of an administrator.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-862: Missing Authorization

SMS Alert <= 3.8.1 carries this weakness at handleWpLoginCreateUserAction(), and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For SMS Alert the fix is 3.8.2: builds <= 3.8.1 are affected, anything from 3.8.2 onward is not.

Remediation

Update to version 3.8.2, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: SMS Alert 3.8.2 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-3876https://www.wordfence.com/threat-intel/vulnerabilities/id/1cf65f79-d386-4dd4-a360-b2f764dfaf19https://nvd.nist.gov/vuln/detail/CVE-2025-3876

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C