okular version 18.08 and earlier contains a Directory Traversal vulnerability in function “unpackDocumentArchive(…)” in “core/document.cpp” that can result in Arbitrary file creation on the user workstation. This attack appear to be exploitable via he victim must open a specially crafted Okular archive. This issue appears to have been corrected in version 18.08.1 (CVSS:0.0) (Last Update:2018-09-06)