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…

published November 21, 2018

CVSS
—
EPSS
1%
Percentile
55.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00777 · 55.3th percentile
Published
2018-11-21T21:00Z
EPSS history
Timeline
  • 21 NOV 21:00Z
    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…
    cvelistv5