Mattermost Focalboard vulnerabilities
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Published CVEs affecting Mattermost Focalboard: 2 record(s), with affected versions and fixes.cpe:2.3:a:mattermost:focalboard
CVE-2026-28736
Medium · 4.3
CWE-639 Apr 3, 2026
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 not maintained and no fix will be issued.
CVE-2026-25773
Medium · 6.5
CWE-89 Apr 3, 2026
Focalboard Second-Order SQL Injection in category reorder endpoint allows data exfiltration (unsupported product, no fix)
** UNSUPPORTED WHEN ASSIGNED ** Focalboard version 8.0 fails to sanitize category IDs before incorporating them into dynamic SQL statements when reordering categories. An attacker can inject a malicious SQL payload into the category id field, which is stored in the database and later executed unsanitized when the category reorder API processes the stored value. This Second-Order SQL Injection (Time-Based Blind) allows an authenticated attacker to exfiltrate sensitive data including password hashes of other users. NOTE: Focalboard as a standalone product is not maintained and no fix will be issued.