CVE-2025-12154 - CVE House
Back to Database
Status published High CVE-2025-12154

Auto Thumbnailer <= 1.0 - Authenticated (Contributor+) Arbitrary File Upload

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-12154

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Kenneth Dunn

Affected Vendor

moderntribe

View all reports →

Affected Software

Auto Thumbnailer
Vulnerable Versions:
0

Timeline

Official Publish: December 5th, 2025
Last Modified: April 8th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)