EUVD-2026-18653
GHSA-vph7-r229-qxpf
4.3
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Lifecycle Timeline
3
EUVD ID Assigned
Apr 03, 2026 - 13:45 euvd
EUVD-2026-18653
Analysis Generated
Apr 03, 2026 - 13:45 vuln.today
CVE Published
Apr 03, 2026 - 13:25 nvd
MEDIUM 4.3
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.
Analysis
Focalboard 8.0 fails to validate file ownership during file serving, allowing authenticated attackers to read arbitrary uploaded files if they know the target fileID. The vulnerability affects all versions of the standalone Focalboard product, which is no longer maintained by Mattermost and will not receive security patches. …
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Priority Score
22
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +22
POC: 0
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External POC / Exploit Code
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