FocalboardApplication · Mattermost

CVE-2026-25773

MEDIUM · 6.5 CVSS v3.1 Published 2026-04-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
** 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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Focalboard 8.0 contains a second-order SQL injection (time-based blind) in the category reorder API. Unsanitized category IDs are stored in the database and later executed as dynamic SQL when the reorder function processes them, allowing authenticated attackers to exfiltrate sensitive data including password hashes.

MitigationSince Focalboard is unsupported with no official fix, mitigate by deploying a WAF/proxy layer to sanitize category ID inputs, disabling the category reorder functionality if unnecessary, or migrating to an alternative solution.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
FocalboardApplication
Affected:= 8.0.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Focalboard version
    Check the Focalboard version by inspecting the application binary, package manifest, or version endpoint (e.g., GET /api/v1/version or checking the main binary with --version flag). Compare against the affected version 8.0.0.
    Affected if The installed version is exactly 8.0.0
  2. Verify category reorder API exists
    Confirm the category reorder API endpoint exists by reviewing Focalboard routing configuration or API documentation. Typical endpoint pattern: PUT /api/v1/teams/{team_id}/categories/reorder
    Affected if The category reorder API endpoint is present and accessible in the deployment
  3. Check for SQL injection logs or database anomalies
    Review application logs for time-based SQL injection indicators (unusual query execution times, SQL syntax errors in category-related operations, or database connection anomalies). Inspect the database query logs if available.
    Affected if Logs show suspicious time delays in category operations or SQL error messages containing category ID values
  4. Inspect database for injected payloads in category tables
    Query the categories table directly (e.g., SELECT id, name FROM categories WHERE id LIKE '%SELECT%' OR id LIKE '%SLEEP%' OR id LIKE '%UNION%') to detect any SQL injection payloads stored as category IDs.
    Affected if Category ID fields contain SQL keywords, functions, or obvious injection payloads

You are affected if you are running Focalboard version 8.0.0 and the category reorder API is accessible to authenticated users.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Since Focalboard is unsupported with no official fix, mitigate by deploying a WAF/proxy layer to sanitize category ID inputs, disabling the category reorder functionality if unnecessary, or migrating to an alternative solution.

Fix this in Focalboard Scoped from the published advisory
  • Consultation6.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
24.0 hours of engineering $4,260
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Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-25773 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data