Auto Featured Image (Auto Post Thumbnail) <= 3.9.15 - Authenticated (Author+) Arbitrary File Upload

Unrestricted Upload of File with Dangerous Type
CVE CVE-2023-0477
CVSS 7.2 (High)
Publicly Published February 7, 2023
Last Updated February 16, 2023
Researcher dc11


The Auto Featured Image (Auto Post Thumbnail) plugin for WordPress is vulnerable to Arbitrary File Upload due to insufficient file type validation in versions up to, and including, 3.9.15. This allows authenticated users with author-level permissions to upload arbitrary files from remote sources onto the affected site's server which may make remote code execution possible.



1 affected software package

Software Type Plugin
Software Slug auto-post-thumbnail (view on
Patched? Yes
Remediation Update to version 3.9.16, or a newer patched version
Affected Version
  • <= 3.9.15
Patched Version
  • 3.9.16

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