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Case File

CVE-2021-40109

MEDIUM · CVSS 6.4 EPSS 0.54%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-27 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.4. See the original NVD description below for full technical details.

CVE
CVE-2021-40109
Severity
MEDIUM
CVSS
6.4
EPSS
0.54%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)