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Fri, 16 Oct 2026 15:30:00 +0000
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ssvc
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Fri, 16 Oct 2026 04:00:00 +0000
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| 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. | |
| Title | Customer Email Verification for WooCommerce <= 3.3.0 - Unauthenticated Privilege Escalation to 'alg_wc_ev_verify_email' Parameter | |
| Weaknesses | CWE-269 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-10-16T15:09:41.042Z
Reserved: 2026-10-02T12:04:27.373Z
Link: CVE-2026-104745
Updated: 2026-10-16T15:00:35.635Z
Status : Deferred
Published: 2026-10-16T04:18:21.607
Modified: 2026-10-16T15:17:03.563
Link: CVE-2026-104745
No data.
OpenCVE Enrichment
Updated: 2026-10-16T13:52:50Z