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CVE-2026-18470 – Unauthenticated Email Address Disclosure – Login & Register Forms WordPress Plugin

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Summary

CVE-2026-18470 is an unauthenticated sensitive information disclosure vulnerability in the Login & Register Forms WordPress plugin (slug easy-login-woocommerce) in all versions before 4.0.2. The plugin fails to verify that a password reset request originates from the account owner and does not adequately redact the email address returned in its response, allowing unauthenticated attackers to obtain registered users’ email addresses, including administrators’. It carries a HIGH severity rating (CVSS 7.5).

Technical details

  • Root cause: The plugin does not adequately verify that a password reset (lost password) request comes from the account’s owner, and it insufficiently redacts the email address included in its response.
  • Trigger conditions: The issue is reachable when the non-default verification-code reset mode is enabled.
  • Attack vector: Network — an unauthenticated remote attacker submits password reset requests to the plugin’s lost-password functionality.
  • Impact: Disclosure of registered users’ email addresses, including administrator accounts (confidentiality impact only; no integrity or availability impact).

Affected software

  • Login & Register Forms WordPress plugin (easy-login-woocommerce): all versions before 4.0.2.

Severity

  • CVSS v3.1 base score: 7.5 (High)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Mitigation and recommended actions

  • Immediate: Update the Login & Register Forms plugin to version 4.0.2 or later.
  • If no patch can be applied immediately: Disable the verification-code reset mode if it is enabled, restrict access to the plugin’s login/registration and password reset endpoints (for example via a WAF or network access controls), and monitor for anomalous password reset request volume.

How IONIX identifies potentially affected assets

IONIX matches the following signals against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Raw HTTP response body: /wp-content/plugins/easy-login-woocommerce/

References

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