CVE-2026-3506
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 · uneditedThe WP-Chatbot for Messenger plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.9. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to overwrite the site's MobileMonkey API token and company ID options, which can be used to hijack chatbot configuration and redirect visitor conversations to an attacker-controlled MobileMonkey account.
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 confidenceThe WP-Chatbot for Messenger plugin for WordPress versions 4.9 and earlier lacks proper capability checks and nonce verification on endpoints that handle MobileMonkey API token and company ID settings. This allows unauthenticated attackers to send crafted requests that overwrite these options, redirecting chatbot visitor conversations to an attacker-controlled MobileMonkey account.
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
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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 checksWork through these to decide whether this CVE applies to you.
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Verify WP-Chatbot plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for 'WP-Chatbot for Messenger' or check the plugin files in /wp-content/plugins/ for a folder containing 'wp-chatbot' or similarAffected if The plugin is present on the WordPress site
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Determine installed plugin versionIn Plugins list, click on the plugin to view details and note the version number; alternatively, check the plugin main PHP file for a version constant or the plugin header commentAffected if Version is 4.9 or earlier (versions 4.10 and later contain the fix)
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Inspect MobileMonkey API settingsNavigate to the plugin settings page (usually under WP-Chatbot or Messenger settings in the WordPress admin) and check the MobileMonkey API Token and Company ID fields for unexpected valuesAffected if The API token or company ID has been changed to an unrecognized value or points to an unknown MobileMonkey account
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Check for unauthorized settings modificationsIf available, review the WordPress options database table (wp_options) for records with option_name containing 'wpchatbot' or 'mobile_monkey' and verify the values match expected settingsAffected if Option values have been altered to attacker-controlled MobileMonkey credentials
You are affected if the WP-Chatbot for Messenger plugin versions 4.9 or earlier is installed and the MobileMonkey API settings show unauthorized changes or are accessible without authentication.
Generated from the published advisory. Verify against your own configuration.
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 dataUpdate to plugin version 4.10 or later which includes proper authorization checks. If no patch is available, disable the plugin or restrict access to admin pages until a fix is released.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-3506 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-3506 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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