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

Source

https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-13731.yaml

Associated Vulnerability

Title: WPBot <= 8.4.9 - Unauthenticated Stored Cross-Site Scripting via 'conversation' Parameter (CVE-2026-13731)
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, 8.4.9 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.

Description

WPBot <= 8.4.9 is vulnerable to stored cross-site scripting via the conversation parameter in the qcld_wb_chatbot_conversation_save AJAX action. The AJAX nonce (qcsecretbotnonceval123qc) is publicly emitted on every frontend page via wp_localize_script under the ajax_nonce key, making it freely obtainable by unauthenticated visitors. The conversation parameter is saved to the database without sanitization and rendered unsanitized in the admin chat session view, causing stored XSS that executes when an administrator views saved chat sessions.

File Snapshot

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