Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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 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.

Published

2021-09-27T13:15:08.107

Last Modified

2024-11-21T06:23:35.163

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.4 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:P/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

8.0

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-918
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application concretecms concrete_cms < 8.5.6 Yes
References