CVE-2026-83593: quantumcloud wpbot – ai chatbot for live support, lead generation, ai services Cross-site Scripting

Vulnerability summary

CVE-2026-83593 is a high (CVSS 7.2) Cross-site Scripting vulnerability in quantumcloud wpbot – ai chatbot for live support, lead generation, ai services. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.4% of scored vulnerabilities.

Timeline

1. 09-09-2026
   PublishedVulnerability first disclosed.
2. 09-09-2026
   Last modifiedVulnerability information updated.

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.

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')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.