CVE-2026-15106
WPBot <= 8.5.6 - Missing Authorization to Unauthenticated Arbitrary Chat Session Deletion via 'userid' Parameter
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
The WPBot – AI ChatBot for Live Support, Lead Generation, AI Services plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 8.5.6. 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 delete arbitrary chat session records from the wpbot_user and wpbot_conversation tables, including chat history and conversation logs, by supplying a crafted userid value.
| CWE | CWE-862 |
| Vendor | quantumcloud |
| Product | wpbot – ai chatbot for live support, lead generation, ai services |
| Published | Jul 16, 2026 |
| Last Updated | Jul 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
quantumcloud / WPBot – AI ChatBot for Live Support, Lead Generation, AI Services
0 ≤ 8.5.6
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/dc36ee53-81a9-416e-8e74-31d9c8802d6c?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.0/includes/chat-sessions/wpbot-chat-sessions.php#L393 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.0/includes/chat-sessions/wpbot-chat-sessions.php#L372 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.0/includes/chat-sessions/wpbot-chat-sessions.php#L391 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php#L393 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php#L372 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php#L391 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?reponame=&old=3608558%40chatbot&new=3608558%40chatbot
Credits
PRISM