In GetSimpleCMS 3.3.15, admin/upload.php blocks .html...
Moderate severity
Unreviewed
Published
May 14, 2022
to the GitHub Advisory Database
•
Updated Feb 2, 2023
Description
Published by the National Vulnerability Database
Nov 21, 2018
Published to the GitHub Advisory Database
May 14, 2022
Last updated
Feb 2, 2023
In GetSimpleCMS 3.3.15, admin/upload.php blocks .html uploads but there are several alternative cases in which HTML can be executed, such as a file with no extension or an unrecognized extension (e.g., the test or test.asdf filename), because of admin/upload-uploadify.php, and validate_safe_file in admin/inc/security_functions.php.
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