CVE-2026-28736
MEDIUM
NVD
CVSS Score
4.3
Severity
MEDIUM
Published
Apr 03, 2026
Vendor
unknown
Description
** UNSUPPORTED WHEN ASSIGNED ** Focalboard version 8.0 fails to validate file ownership when serving uploaded files. This allows an authenticated attacker who knows a victim's fileID to read the content of the file. NOTE: Focalboard as a standalone product is not maintained and no fix will be issued.