Vulnerability · Published Sep 27, 2021 · Assigned by mitre
CVE-2021-40109
Medium 6.4
In plain English
A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).
Severity (CVSS NVD)6.4Medium
Exploit odds (30 days)0.5%top 54.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 products (as reported)
References
- https://hackerone.com/reports/1102105 x_refsource_MISC
- https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes x_refsource_MISC