CVE-2023-0477: Cm-Wp Auto Featured Image

High severity, CVSS 8.8. EPSS: 1.6% chance of exploitation in the next 30 days.

The Auto Featured Image (Auto Post Thumbnail) WordPress plugin before 3.9.16 includes an AJAX endpoint that allows any user with at least Author privileges to upload arbitrary files, such as PHP files. This is caused by incorrect file extension validation.

Affected products

• Cm-Wp Auto Featured Image: before 3.9.16 (fixed in 3.9.16)

Published 2023-03-13. Last modified 2026-06-17.