CVE-2026-62843 — File Browser: Archive builder turns backslash filenames into path traversal (zip-slip)
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 a…
Published: 2026-07-15 · CVSS: 6.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7