CVE-2026-39707

Vulnerability

Overview The Accept PayPal Payments using Contact Form 7 plugin for WordPress suffers from a missing authorization vulnerability tracked as CVE-2026-39707. The issue affects all versions from n/a through 4.0.4. The root cause is incorrect access control security level configuration, leading to a broken access control problem [1].

Exploitation

Details Exploitation of this vulnerability requires no authentication, as the missing authorization check permits unprivileged users to execute functions that should require higher privileges. Attackers can leverage this flaw to exploit incorrectly configured access control security levels, potentially affecting websites regardless of size or traffic [1].

Impact

A successful attack could allow an unprivileged user to perform unauthorized actions that compromise the site's security. The reference indicates that such vulnerabilities are commonly used in mass-exploit campaigns, targeting thousands of sites simultaneously [1].

Mitigation

The plugin vendor has not yet released a patch; users should update to a patched version as soon as one becomes available. As an immediate action, updating the plugin is recommended. If updating is not possible, consulting a hosting provider or web developer for assistance is advised [1].