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CVE-2026-16773— WPBot <= 8.5.9 - Unauthenticated Sensitive Information Exposure in 'wpbot_send_email_transcript' AJAX Action

Quick assessment

Affected
quantumcloud WPBot – AI ChatBot for Live Support, Lead Generation, AI Services
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件 WPBot – AI ChatBot for Live Support, Lead Generation, AI Services 在所有版本直至 8.5.9（含）中存在敏感信息泄露漏洞，该漏洞由 wpbot_send_email_transcript_free 功能引发。未认证的远程攻击者可利用此漏洞，将存储在 wpbot_user 和 wpbot_conversation 表中的完整聊天记录及相关的用户个人身份信息（包括姓名、电子邮件地址和电话号码）外泄至攻击者控制的邮箱地址。

CVSS 5.3 · Medium EPSS 0.47% · P41

Affected Version Matrix 1

VendorProduct Version RangeStatus
quantumcloud WPBot – AI ChatBot for Live Support, Lead Generation, AI Services ≤ 8.5.9 affected
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I. Basic Information for CVE-2026-16773

Vulnerability Information
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Vulnerability Title
WPBot <= 8.5.9 - Unauthenticated Sensitive Information Exposure in 'wpbot_send_email_transcript' AJAX Action
Source: CVE Program / CVE List V5
Vulnerability Description
The WPBot – AI ChatBot for Live Support, Lead Generation, AI Services plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 8.5.9 via the wpbot_send_email_transcript_free. This makes it possible for unauthenticated attackers to exfiltrate full chat transcripts and associated user PII — including names, email addresses, and phone numbers — stored in the wpbot_user and wpbot_conversation tables to an attacker-controlled email address.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
quantumcloud WPBot – AI ChatBot for Live Support, Lead Generation, AI Services 0 ~ 8.5.9 -

II. Public POCs for CVE-2026-16773

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III. Intelligence Information for CVE-2026-16773

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Patches & Fixes for CVE-2026-16773 (1)

News Coverage for CVE-2026-16773 (1)

IV. Related Vulnerabilities

Same product: WPBot – AI ChatBot for Live Support, Lead Generation, AI Services
Same vendor: quantumcloud
Same weakness: CWE-200