WPBot <= 8.7.3 - Unauthenticated Stored Cross-Site Scripting via 'conversation' Parameter

7.2
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-83593
CVSS 7.2 (High)
Publicly Published September 8, 2026
Last Updated September 9, 2026
Researcher Ivaylo

Description

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.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

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Vulnerability Details for WPBot – AI ChatBot for Live Support, Lead Generation, WordPress Automation, AI Services

Software Type Plugin
Software Slug chatbot (view on wordpress.org)
Patched? Yes
Remediation Update to version 8.7.4, or a newer patched version
Affected Version
  • <= 8.7.3
Patched Version
  • 8.7.4

Recent vulnerabilities in WPBot – AI ChatBot for Live Support, Lead Generation, WordPress Automation, AI Services

# Title CVE ID CVSS Researchers Date
1 WPBot 8.7.2 - 8.7.5 - Missing Authorization CVE-2026-87959 4.3 Sergey Mkrtchyan September 14, 2026
2 WPBot – AI ChatBot for Live Support, Lead Generation, WordPress Automation, AI Services < 8.5.7 - Missing Authorization CVE-2026-87918 5.3 Pedro Pinho September 12, 2026
3 WPBot <= 8.5.9 - Unauthenticated Information Exposure CVE-2026-87916 5.3 Seongwon Lee September 10, 2026
4 WPBot <= 8.5.9 - Unauthenticated Sensitive Information Exposure in 'wpbot_send_email_transcript' AJAX Action CVE-2026-16773 5.3 Wordfence PRISM July 27, 2026
5 WPBot <= 8.5.9 - Missing Authorization to Unauthenticated Email Relay via wpcs_send_email AJAX Action CVE-2026-16774 5.3 Wordfence PRISM July 27, 2026
6 WPBot <= 8.5.6 - Missing Authorization to Unauthenticated Arbitrary Chat Session Deletion via 'userid' Parameter CVE-2026-15106 5.3 Wordfence PRISM July 15, 2026
7 WPBot <= 8.5.6 - Missing Authorization to Authenticated (Subscriber+) Arbitrary RAG Document Re-Sync via ajax_rag_manual_sync() Function CVE-2026-15610 4.3 Wordfence PRISM July 15, 2026
8 WPBot – AI ChatBot for Live Support, Lead Generation, AI Services <= 8.3.7 - Unauthenticated Stored Cross-Site Scripting CVE-2026-57363 7.2 daroo July 6, 2026
9 WPBot AI ChatBot <= 8.5.1 - Authenticated (Administrator+) SQL Injection CVE-2026-14189 4.9 Mustafa Ahmed July 6, 2026
10 WPBot – AI ChatBot for Live Support, Lead Generation, AI Services <= 8.3.2 - Reflected Cross-Site Scripting CVE-2026-57362 6.1 Nguyen Dinh Hai (HaiND) July 1, 2026

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