uploadimg.php in the Automatic Image Upload with Thumbnails (imgUpload) module 1.3.2 for PunBB only verifies the Content-type field of uploaded files, which allows remote attackers to upload and execute arbitrary content via a file with a (1) JPG, (2) GIF, or (3) PNG MIME type.
CVSS Details
- CVSS 3.1 Base Score: 6.5
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