Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in supsystic.Com Popup by Supsystic allows Relative Path Traversal.This issue affects Popup by Supsystic: from n/a through 1.10.19.
Solution:
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.