CVE-2026-104745: Customer Email Verification for WooCommerce <= 3.3.0 - Unauthenticated Privilege

In plain English

A high-severity privilege mismanagement in Customer Email Verification for WooCommerce from wpcodefactory. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Official description

The Customer Email Verification for WooCommerce plugin for WordPress is vulnerable to Privilege Escalation via the `alg_wc_ev_verify_email` parameter in versions up to, and including, 3.3.0. The vulnerability exists because `alg_wc_ev_generate_user_code()` generates the per-user activation secret using `wp_rand(100)` when the plugin's 'Encoding method' is set to 'hashids', producing only ~101 possible values (~7 bits of entropy); the resulting token is a reversible Hashids encoding with no cryptographic MAC, and the unauthenticated `verify()` handler — hooked to `init` at `PHP_INT_MAX` with no nonce check and no rate limiting — accepts and acts on the attacker-controlled `?alg_wc_ev_verify_email=` GET parameter directly. This makes it possible for unauthenticated attackers to gain authentication as any unverified WordPress account, including administrator-level accounts, by brute-forcing the trivially small activation code space via a forged verification URL. Exploitation requires that the 'Encoding method' setting be changed to 'hashids' (non-default), that the attacker recover or brute-force the Hashids salt (which defaults to an `md5(time())` value set at first initialization), and that the target account's email address remain unverified.

Vendor	Product	Versions
wpcodefactory	Customer Email Verification for WooCommerce	0 – through 3.3.0

Vendor

Product

Versions

wpcodefactory

Customer Email Verification for WooCommerce

0 – through 3.3.0

CVE-2026-104745Customer Email Verification for WooCommerce <= 3.3.0 - Unauthenticated Privilege Escalation to 'alg_wc_ev_verify_email' Parameter

In plain English

Official description

Affected products (as reported)

References