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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-11-21T21:00:00Z

Updated: 2024-09-16T17:28:02.673Z

Reserved: 2018-11-21T00:00:00Z

Link: CVE-2018-19420

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2018-11-21T21:29:00.220

Modified: 2018-12-28T14:31:42.387

Link: CVE-2018-19420

cve-icon Redhat

No data.