A vulnerability classified as critical was found in xiaoyunjie openvpn-cms-flask up to 1.2.7. This vulnerability affects the function Upload of the file app/plugins/oss/app/controller.py of the component File Upload. The manipulation of the argument image leads to path traversal. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.2.8 is able to address this issue. The name of the patch is e23559b98c8ea2957f09978c29f4e512ba789eb6. It is recommended to upgrade the affected component.
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://vuldb.com/?id.314092 | vdb entry technical description |
| https://vuldb.com/?ctiid.314092 | signature permissions required |
| https://vuldb.com/?submit.602374 | third party advisory |
| https://github.com/xiaoyunjie/openvpn-cms-flask/issues/23 | exploit issue tracking |
| https://github.com/xiaoyunjie/openvpn-cms-flask/commit/e23559b98c8ea2957f09978c29f4e512ba789eb6 | patch |
| https://github.com/xiaoyunjie/openvpn-cms-flask/releases/tag/v1.2.8 | patch |