CVE-2021-40109: A SSRF issue was discovered in Concrete CMS through 8.5.5. Users can access forbidden files on their local network. A user with permissions to upload files…

PriorityP335medium6.4CVSS 3.1

AVNACLPRLUINSCCLILAN

EPSS

0.52%

40.2th percentile

A SSRF issue was discovered in Concrete CMS through 8.5.5. Users can access forbidden files on their local network. A user with permissions to upload files from external sites can upload a URL that redirects to an internal resource of any file type. The redirect is followed and loads the contents of the file from the redirected-to server. Files of disallowed types can be uploaded.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
concretecms	concrete_cms	< 8.5.6	8.5.6

CVSS provenance

nvdv3.16.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

nvdv2.05.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:N

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