CVE-2018-19420

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 validatesafefile in...

CVE-2018-19420

In GetSimpleCMS 3.3.15, an HTML-execution vulnerability exists in the upload handling path. Although admin/upload.php blocks .html uploads, HTML can still be executed via edge cases such as files with no extension or unrecognized extensions (e.g., test or test.asdf) through the interaction with a...