An issue was discovered in Concrete CMS through 8.5.5. Path Traversal can lead to Arbitrary File Reading and SSRF.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Link | Tags |
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https://hackerone.com/reports/1102211 | third party advisory permissions required |
https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes | release notes vendor advisory |