VULNERABILITY INTELLIGENCE

CVE-2018-19420

CVSS score3.8 LOW
EPSS probability0.78%
CISA KEVNot currently listed
Published2018-11-21
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

Description

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.

Weakness classification

  • CWE-434: Unrestricted Upload of File with Dangerous Type

Primary references