CVE-2021-4436: WP3DPRINTING 3dprint Lite

Critical severity, CVSS 9.8. EPSS: 6.6% chance of exploitation in the next 30 days.

The 3DPrint Lite WordPress plugin before 1.9.1.5 does not have any authorisation and does not check the uploaded file in its p3dlite_handle_upload AJAX action , allowing unauthenticated users to upload arbitrary file to the web server. However, there is a .htaccess, preventing the file to be accessed on Web servers such as Apache.

Affected products

• WP3DPRINTING 3dprint Lite: before 1.9.1.5 (fixed in 1.9.1.5)

Published 2024-02-05. Last modified 2026-06-17.