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CVE-2026-28736

4.3 medium SSVC exploitation: none Analyzed
NVD · CVE.org

** 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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 1

  1. First seenCVSS 4.3 · mattermostNVD modified 2026-10-23 22:10

Affected (CPE criteria) 1

  • cpe:2.3:a:mattermost:focalboard:8.0.0:*:*:*:*:*:*:*

References 1