CVE-2026-83593
Received Received - Intake

Stored XSS in WPBot AI ChatBot for WordPress Plugin

Publication date: 2026-09-09

Last updated on: 2026-09-09

Assigner: Wordfence

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-09
Last Modified
2026-09-09
Generated
2026-09-09
AI Q&A
2026-09-09
EPSS Evaluated
N/A
NVD
CVE-2026-83593
EUVD
EUVD-2026-74688

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wpbot ai_chatbot_for_live_support to 8.7.3 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the WPBot – AI ChatBot for Live Support WordPress plugin. It allows unauthenticated attackers to inject malicious scripts via the 'conversation' parameter due to poor input sanitization and output escaping. The injected scripts execute when users access affected pages.

Impact Analysis

An attacker could steal user sessions, deface websites, or redirect visitors to malicious sites. Since the flaw allows script injection without authentication, any visitor to an affected site could be compromised. The impact includes data theft, reputational damage, and potential malware distribution.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR (data breaches exposing user data) and HIPAA (unauthorized access to protected health information). Organizations may face fines, legal action, and loss of trust due to inadequate security controls.

Mitigation Strategies

Update the WPBot plugin to the latest version beyond 8.7.3 immediately. Disable the plugin temporarily if an update is not available. Monitor for suspicious activity in web server logs for injected scripts.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-83593. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart