What’s Vulnerable › Vulnerabilities
CVE-2026-3506: WP-Chatbot for Messenger <= 4.9 - Missing Authorization to Unauthenticated Chatbot Configuration Takeover
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-21 · updated 2026-06-17
- Weakness: CWE-862
Description
The 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.
Affected products
- larrykim WP-Chatbot for Messenger: through 4.9
References
- https://plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/admin/admin.php#L29
- https://plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/admin/class-htcc-admin.php#L29
- https://plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/inc/MobileMonkeyApi.php#L37
- https://plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/inc/MobileMonkeyApi.php#L409
- https://plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/inc/MobileMonkeyApi.php#L52
- https://plugins.trac.wordpress.org/browser/wp-chatbot/tags/4.9/inc/class-ht-cc.php#L178
- https://plugins.trac.wordpress.org/browser/wp-chatbot/trunk/inc/MobileMonkeyApi.php#L37
- https://www.wordfence.com/threat-intel/vulnerabilities/id/32cce973-bc3b-45f1-ad4d-ff395d3a6c8e?source=cve
Get alerted when CVE-2026-3506 or the next vulnerability affects your stack