User Email Verification for WooCommerce <= 3.3.0 - Unauthenticated Arbitrary Options Update
Strategic Overview
- Status
- Patched in 3.4.0
- Affected Plugin
- User Email Verification for WooCommerce
- Affected Version
<= 3.3.0- CVSS
- 8.8High
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE pending
At a glance
This record tracks a high-severity Missing Authorization vulnerability in the User Email Verification for WooCommerce WordPress plugin, affecting versions <= 3.3.0. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 3.4.0; sites on affected versions should update now. Disclosed May 2019, reported by Brad Griffin.
Vulnerability Overview
The User Email Verification for WooCommerce plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 3.3.0. This is due to missing authorization checks on the save_tab_settings() function. This makes it possible for unauthenticated attackers to change otherwise restricted plugin options that can be used to inject new administrative user accounts.
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 privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-862: Missing Authorization
User Email Verification for WooCommerce <= 3.3.0 carries this weakness at save_tab_settings(), and reaching it takes no account at all. 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 User Email Verification for WooCommerce the fix is 3.4.0: builds <= 3.3.0 are affected, anything from 3.4.0 onward is not.
Remediation
Update to version 3.4.0, or a newer patched version
How does WordSec protect against this?
This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: User Email Verification for WooCommerce 3.4.0 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in User Email Verification for WooCommerce
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