File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.63.6 to 2.63.16, File Browser's archive builder uses strings.ReplaceAll(nameInArchive, "", "/"), which turns a POSIX filename such as ....\evil.sh into the archive entry ../../evil.sh, allowing a user with upload permission to plant a backslash-named file that escapes the extraction directory when another user downloads and extracts the generated zip or tar archive. This issue is fixed in version 2.63.17.
Exploitability
AV:NAC:LPR:LUI:RScope
S:CImpact
C:NI:HA:N6.8/CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:NInput Validation