Directory traversal vulnerability in wra/public/wralogin in 2Wire Gateway, possibly as used in HomePortal and other product lines, allows remote attackers to read arbitrary files via a .. (dot dot) in the return parameter. NOTE: this issue was reported as XSS, but this might be a terminology error.
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.