# CVE-2026-15106: QuantumCloud WPBot authorization bypass in chat sessions

Source: https://junglewise.ai/threats/cve-2026-15106-quantumcloud-wpbot-authorization-bypass-in-chat-sessions  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-16. Updated: 2026-07-16  
License: CC BY 4.0 with a link back

CVE-2026-15106 · Severity: medium · CVSS 5.3 · Published 2026-07-16

WPBot is a WordPress plugin used to provide AI-driven customer support and lead generation through a website chatbot. A security flaw allows unauthorized individuals to delete chat history and conversation logs without needing to log in. This could result in the loss of valuable customer interaction data and lead generation records, potentially impacting business operations and customer service tracking.

Technologies: [QuantumCloud WPBot – AI ChatBot for Live Support, Lead Generation, AI Services](https://junglewise.ai/threats/technologies/wpbot). Vendors: [QuantumCloud](https://junglewise.ai/threats/vendors/quantumcloud).

## Quick answers

**Is CVE-2026-15106 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15106 being exploited in the wild.

**How severe is CVE-2026-15106?** Medium severity, with a CVSS score of 5.3, published 16 July 2026.

**Which products and versions are affected?** QuantumCloud WPBot – AI ChatBot for Live Support, Lead Generation, AI Services up to, and including, 8.5.6.

**Is there a fix for CVE-2026-15106?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-15106 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-15106?** Check whether you run QuantumCloud WPBot – AI ChatBot for Live Support, Lead Generation or AI Services at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The WPBot plugin for WordPress (versions up to 8.5.6) contains a missing authorization vulnerability (CWE-862) within its chat session management logic. Specifically, the plugin fails to validate the authorization of users attempting to perform deletion actions in the wpbot-chat-sessions.php component. An unauthenticated attacker can exploit this by sending a crafted request with a specific 'userid' value to delete records from the 'wpbot_user' and 'wpbot_conversation' database tables. This allows for the remote, unauthorized deletion of chat history and session metadata. A fix was introduced in versions following 8.5.6.

## Affected products

- QuantumCloud WPBot – AI ChatBot for Live Support, Lead Generation, AI Services up to, and including, 8.5.6

## Timeline

- 2026-07-16: disclosed
- 2026-07-16: advisory

## References

- [https://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php](https://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php)
- [https://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php](https://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php)
- [https://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php](https://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php)
- [https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.0/includes/chat-sessions/wpbot-chat-sessions.php](https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.0/includes/chat-sessions/wpbot-chat-sessions.php)
- [https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.0/includes/chat-sessions/wpbot-chat-sessions.php](https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.0/includes/chat-sessions/wpbot-chat-sessions.php)
- [https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.0/includes/chat-sessions/wpbot-chat-sessions.php](https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.0/includes/chat-sessions/wpbot-chat-sessions.php)
- [https://plugins.trac.wordpress.org/changeset?reponame=&old=3608558%40chatbot&new=3608558%40chatbot](https://plugins.trac.wordpress.org/changeset?reponame=&old=3608558%40chatbot&new=3608558%40chatbot)