CVEvulnerability

CVE-2021-40109

6.4 MEDIUM Published 2021-09-27 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-09-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS 2.0 ([email protected])
5.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:N
Weaknesses
CWE-918

Description

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 configurations

• concretecms concrete cms (< 8.5.6)

Related

Weakness · CWE (1)

  • CWE-918 Server-Side Request Forgery weakness

References