Multiple directory traversal vulnerabilities in the Refractor 2 engine, as used in Battlefield 2 1.50 (1.5.3153-802.0) and earlier, and Battlefield 2142 (1.10.48.0) and earlier, allow remote servers to overwrite arbitrary files on the client via "..\" (dot dot backslash) sequences in URLs for the (1) sponsor or (2) community logos, and other URLs related to (3) DemoDownloadURL, (4) DemoIndexURL and (5) CustomMapsURL.
Improper Limitation of a Pathname to a Restricted Directory 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.