Unrated severityNVD Advisory· Published Sep 27, 2021· Updated Aug 4, 2024
CVE-2021-40109
CVE-2021-40109
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Concrete CMS/Concrete CMSdescription
Patches
Vulnerability mechanics
References
2- documentation.concretecms.org/developers/introduction/version-history/856-release-notesmitrex_refsource_MISC
- hackerone.com/reports/1102105mitrex_refsource_MISC
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