An issue was discovered in zzcms 8.3. It allows remote attackers to delete arbitrary files via directory traversal sequences in the flv parameter. This can be leveraged for database access by deleting install.lock.
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 |
|---|---|
| https://github.com/cumtxujiabin/CmsPoc/blob/master/zzcms_8.3_file_del.md | third party advisory exploit |