CVE-2025-12154

Published: Dec 5, 2025Modified: Dec 8, 2025

8.8

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: security@wordfence.com (Secondary)

Description

The Auto Thumbnailer plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the uploadThumb() function in all versions up to, and including, 1.0. This makes it possible for authenticated attackers, with Contributor-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

Related CWEs

CWE-434

Unrestricted Upload of File with Dangerous Type

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

References (2)

https://wordpress.org/plugins/auto-thumbnailer/

Source: security@wordfence.com

https://www.wordfence.com/threat-intel/vulnerabilities/id/d7c98191-bf17-4e94-88cc-ad385b1fe97d?source=cve

Source: security@wordfence.com

Timeline

No history available yet.