CVE-2017-16798
MEDIUM5.4CVSS v3
3.5CVSS v2
0.50%
EPSS (exploit probability)
CWE-79CWE
Description
In CMS Made Simple 2.2.3.1, the is_file_acceptable function in modules/FileManager/action.upload.php only blocks file extensions that begin or end with a "php" substring, which allows remote attackers to bypass intended access restrictions or trigger XSS via other extensions, as demonstrated by .phtml, .pht, .html, or .svg.
CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Affected routers (1)
| Vendor | Model | Matched via | Affected versions | Fixed in | Patch? |
|---|---|---|---|---|---|
| Ubiquiti | Ubiquiti EdgeRouter X | — |
— | — | No |