VulnerabilityModified
CVE-2021-40109
A SSRF issue was discovered in Concrete CMS through 8.5.5.
MEDIUM 6.4EPSS 0.54%
Does this matter?
Lower severity and a low EPSS score (0.54%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- EPSS
- 0.54% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Affected
- concretecms/concrete cms
- Source
- cve@mitre.org
References
- https://documentation.concretecms.org/developers/introduction/version-history/856-release-notesRelease Notes, Vendor Advisory
- https://hackerone.com/reports/1102105Permissions Required
- https://documentation.concretecms.org/developers/introduction/version-history/856-release-notesRelease Notes, Vendor Advisory
- https://hackerone.com/reports/1102105Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.