CVE-2013-4881: Bigtreecms Bigtree CMS

Medium severity, CVSS 6.8. EPSS: 2.2% chance of exploitation in the next 30 days.

Cross-site request forgery (CSRF) vulnerability in core/admin/modules/users/create.php in BigTree CMS 4.0 RC2 and earlier allows remote attackers to hijack the authentication of administrators for requests that create an administrative user via an add user action to index.php.

Affected products

• Bigtreecms Bigtree CMS: up to and including 4.0; version 4.0 only

Published 2013-08-19. Last modified 2026-06-16.