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github.com/mattermost/focalboard

2 known vulnerabilities.

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  • Medium 4.3
    CVE-2026-28736

    Focalboard IDOR in file content endpoint allows cross-user file access (unsupported product, no fix)

    ** 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…

    Mattermost Focalboard github.com/mattermost/focalboard Go