CVE-2026-13731 HIGH

CVE-2026-13731: WPBot <= 8.4.9 - Unauthenticated Stored Cross-Site Scripting via 'conversation' Parameter

Vendor Quantumcloud
Product WPBot – AI ChatBot for Live Support, Lead Generation, AI Services
Weakness CWE-79 · XSS
Published July 1, 2026
Last update July 1, 2026

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

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, 8.4.9 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 AJAX nonce required to authenticate the save request is publicly emitted on every frontend page via wp_localize_script, making it freely obtainable by any anonymous visitor and removing any practical barrier to exploitation.

Explanation of Vulnerability in Simple Terms

02Summary

WPBot versions up to 8.4.9 contain a cross-site scripting vulnerability that allows attackers to inject malicious scripts into the chatbot interface. No authentication is required, and the vulnerability affects multiple users across the site. The injected code can steal session tokens, redirect users, or deface the chatbot display.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that runs in visitors' browsers when they interact with the chatbot.

Potential impact on your site

04Site Impact

Visitors' browsers execute attacker-controlled code, risking credential theft, malware distribution, or site defacement.

Conditions required to exploit

05Prerequisites

None. The attacker can exploit this remotely without authentication or user interaction.

Key dates

06Disclosure timeline

July 1, 2026 CVE published
July 1, 2026 Record updated

Related vulnerabilities

08Related CVE