cbcvebase.
CVE-2018-20526
published 2019-03-21

CVE-2018-20526: Roxy Fileman 1.4.5 allows unrestricted file upload in upload.php.

PriorityP188critical9.8CVSS 3.0
AVNACLPRNUINSUCHIHAH
ITWEXPLOITVulnCheck KEV
Exploited in the wild
EPSS
73.66%
99.4th percentile
Roxy Fileman 1.4.5 allows unrestricted file upload in upload.php.

Affected

1 ranges
VendorProductVersion rangeFixed in
roxyfilemanroxy_fileman

Detection & IOCsextracted from sources · hover to see the quote

path/php/upload.php
path/fileman/php/upload.php
path/Uploads
path/fileman/php/copydir.php
path/fileman/php/copyfile.php
path/fileman/php/fileslist.php
  • Monitor for the presence of the WebKitFormBoundary string '----WebKitFormBoundary20kgW2hEKYaeF5iP' in multipart upload requests to upload.php, which is used in known exploit templates.
  • Detect POST requests to copydir.php or copyfile.php containing dot-dot-slash (../) path traversal sequences in the 'd' or 'f' parameters.
  • Use Shodan or FOFA to identify exposed Roxy File Manager instances via their page title for proactive asset discovery.
  • After successful upload, the attacker accesses the uploaded file via GET request to /Uploads/<filename>; monitor for GET requests to /Uploads/*.php7 or /Uploads/*.php.png returning HTTP 200.

CVSS provenance

nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
vulncheck9.8CRITICAL
CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.