What’s Vulnerable › Vulnerabilities

CVE-2026-9178: WP Forms Connector <= 1.8 - Missing Authorization to Unauthenticated Information Exposure via 'user/list' REST Endpoint

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-24 · updated 2026-06-25
• Weakness: CWE-862

Description

The WP Forms Connector plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 1.8. The plugin registers the REST route wp/v3/user/list/<id> (callback userDetail()) with permission_callback set to '__return_true', and the function's home-grown authentication only verifies that the supplied 'Username' HTTP header maps to an administrator account and that a 'Password' HTTP header is non-empty. It never validates the password with wp_check_password() (unlike the sibling delete_wc_user() function which does). This makes it possible for unauthenticated attackers to retrieve sensitive information for any registered user ID — including the WordPress password hash (user_pass) and email address — by sending a request with a valid administrator login name (commonly the default 'admin') and any arbitrary password value.

Affected products

• hancock11 WP Forms Connector: through 1.8

References

• https://plugins.trac.wordpress.org/browser/wp-forms-connector/tags/1.8/WP-Forms-Connector.php#L1464
• https://plugins.trac.wordpress.org/browser/wp-forms-connector/tags/1.8/WP-Forms-Connector.php#L1477
• https://plugins.trac.wordpress.org/browser/wp-forms-connector/tags/1.8/WP-Forms-Connector.php#L1490
• https://plugins.trac.wordpress.org/browser/wp-forms-connector/tags/1.8/WP-Forms-Connector.php#L739
• https://www.wordfence.com/threat-intel/vulnerabilities/id/f5dfafee-9b6c-4e57-b263-39ff15cd3b51?source=cve

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