CVE-2026-1666

The Download Manager plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'redirect_to' parameter in all versions up to, and including, 3.3.46. This is due to insufficient input sanitization and output escaping on the 'redirect_to' GET parameter in the login form shortcode. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

• CWE-79

• https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.46/src/User/Login.php#L137
• https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.46/src/User/views/login-form.php#L142
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3455081%40download-manager%2Ftrunk&old=3440008%40download-manager%2Ftrunk&sfp_email=&sfph_mail=#file25
• https://www.wordfence.com/threat-intel/vulnerabilities/id/3cb84ba3-b403-4a9d-b1a7-92aa947310ac?source=cve
• https://www.wpdownloadmanager.com/doc/short-codes/wpdm_login_form-user-login-form-short-code/

Published

Feb 18, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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