dbcve.org
SQL InjectionWeakness · CWE-89

CVE-2026-40798

CRITICAL · 9.3 CVSS v3.1 Published 2026-06-15
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges 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
Unauthenticated SQL Injection in wpForo Forum <= 3.0.4 versions.

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 · moderate confidence

Unauthenticated SQL Injection vulnerability in wpForo Forum plugin for WordPress versions 3.0.4 and below allows remote attackers to execute arbitrary SQL commands without any authentication credentials.

MitigationUpdate wpForo Forum to the latest version immediately. If immediate update is not possible, disable the plugin or deploy a WAF rule to block SQL injection attack patterns.

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

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
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
Low

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

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. Confirm wpForo Forum plugin is installed
    Navigate to WordPress admin dashboard > Plugins > Installed Plugins. Look for 'wpForo Forum' or 'wpForo' in the plugin list.
    Affected if wpForo Forum plugin appears in the installed plugins list
  2. Identify installed wpForo version
    In the Plugins list, find wpForo Forum and note the version number displayed beneath the plugin name. Alternatively, check the plugin's main PHP file header or readme.txt file in wp-content/plugins/wpforo/
    Affected if Version is 3.0.4 or lower
  3. Verify plugin is active
    In WordPress admin > Plugins, confirm the wpForo Forum plugin shows as 'Active' (not deactivated or deleted).
    Affected if Plugin is currently active and accessible to unauthenticated users
  4. Confirm WordPress site is publicly accessible
    Verify the site is reachable over the network. This vulnerability is exploitable by remote unauthenticated attackers, so any publicly exposed WordPress site with the vulnerable plugin is at risk.
    Affected if Site is accessible remotely without authentication

If wpForo Forum plugin version 3.0.4 or below is installed and active on a WordPress site, the environment is affected by this unauthenticated SQL injection vulnerability.

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

Update wpForo Forum to the latest version immediately. If immediate update is not possible, disable the plugin or deploy a WAF rule to block SQL injection attack patterns.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

Scan for this in your stack

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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-2026-40798 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