WordPress plugin
Auto Thumbnailer security & vulnerabilities
Unpatched vulnerability in the latest version
At least one vulnerability affects the latest version and no fix has been released. Deactivate the plugin or restrict access to the affected feature until the vendor ships a patch.
- Critical0
- High1
- Medium0
- Low0
All Auto Thumbnailer vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.8 | Authenticated (Contributor+) Arbitrary File Upload ≤1.0No patch available | CVE-2025-12154 |
- High8.8Authenticated (Contributor+) Arbitrary File Upload
≤1.0No patch available
Auto Thumbnailer: common questions
Does Auto Thumbnailer have known vulnerabilities?
Yes. VulnCrest Radar lists 1 known vulnerability in Auto Thumbnailer: 1 high. At least one is not fixed in the latest version.
How do I check which version of Auto Thumbnailer I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Auto Thumbnailer vulnerability?
CVE-2025-12154, published Dec 4, 2025: Auto Thumbnailer <= 1.0 - Authenticated (Contributor+) Arbitrary File Upload. Severity: High (CVSS 8.8).
Is any Auto Thumbnailer vulnerability listed in CISA KEV?
No. None of the known Auto Thumbnailer vulnerabilities is currently listed in the CISA KEV catalog.