---
id: CVE-2026-83593
title: >-
  The WPBot – AI ChatBot for Live Support, Lead Generation, AI Services plugin
  for WordPress is vulnerable to Stored Cross-Site Scripting via the
  'conversation' parameter in all versions up to, and including, 8.7.3 due to
  insufficient inpu…
summary: >-
  The WPBot – AI ChatBot for Live Support, Lead Generation, AI Services plugin
  for WordPress is vulnerable to Stored Cross-Site Scripting via the
  'conversation' parameter in all versions up to, and including, 8.7.3 due to
  insufficient inpu…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: quantumcloud
product: 'WPBot – AI ChatBot for Live Support, Lead Generation, AI Services'
affected:
  - wpbot_ai_chatbot_for_live_support_lead_generation_ai_services <= 8.7.3
published: '2026-09-09'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T17:17:48.013'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-83593'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.6/functions.php#L1922
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.6/includes/chat-sessions/js/admin.js#L86
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.6/includes/chat-sessions/wpbot-chat-sessions.php#L564
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.6/includes/chat-sessions/wpbot-chat-sessions.php#L566
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.6/includes/chat-sessions/wpbot-chat-sessions.php#L708
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.6/includes/chat-sessions/wpbot-chat-sessions.php#L866
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.6/qcld-wpwbot.php#L613
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.6.9/functions.php#L1922
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.6.9/includes/chat-sessions/js/admin.js#L86
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.6.9/includes/chat-sessions/wpbot-chat-sessions.php#L564
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.6.9/includes/chat-sessions/wpbot-chat-sessions.php#L566
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.6.9/includes/chat-sessions/wpbot-chat-sessions.php#L708
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.6.9/includes/chat-sessions/wpbot-chat-sessions.php#L866
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/chatbot/tags/8.6.9/qcld-wpwbot.php#L613
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3679725%40chatbot&new=3679725%40chatbot
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/710fb372-4b7e-43e3-86a7-417143536f43?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-09T15:51:46.958314Z'
epss: 0.00527
epssPercentile: 0.42152
ingestedAt: '2026-09-09T06:01:00.005Z'
---

## Overview

The WPBot – AI ChatBot for Live Support, Lead Generation, AI Services plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'conversation' parameter in all versions up to, and including, 8.7.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The action is gated only by a nonce that is localized into every public-facing page via wp_localize_script, rendering the nonce check ineffective as an access control barrier for unauthenticated users.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.