WP-Chatbot for Messenger <= 4.9 - Missing Authorization to Unauthenticated Chatbot Configuration Takeover

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-3506
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-21 04:17:27 UTC
Updated2026-04-24 16:27:44 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

EPSS: 0.001030000 probability, percentile 0.280350000 (date 2026-04-24)

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Larrykim WP-Chatbot For Messenger affected 4.9 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/inc/MobileMonkeyApi.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/inc/MobileMonkeyApi.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/admin/admin.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/inc/MobileMonkeyApi.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/admin/class-htcc-admin.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-chatbot/trunk/inc/MobileMonkeyApi.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/32cce973-bc3b-45f1-ad4d-ff395... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/inc/class-ht-cc.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Kazuma Matsumoto (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-03-20T14:38:14.000ZDisclosed
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