CVE-2026-83593High· 7.2▾ Twilight

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 inpu…

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score40/ 100 · Moderate

impact 39.6 · likelihood 0.1 · exploitation 0

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Proof of concept

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Published

Sep 9, 2026

Updated

Sep 9, 2026

CVSS

7.2

Vendor

quantumcloud

Product

WPBot – AI ChatBot for Live Support, Lead Generation, AI Services

CWE

CWE-79

Depth score

40 · Moderate

EPSS

0.53% · p44

Platforms

—

Source

NVD

Vector

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

CISA SSVC

decided 2026-09-09

Exploitation: none
Automatable: yes
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Sep 9.

0.3% → 0.5%▲ 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 16 days

Sep 9, 2026Published
Disclosed via NVD
Sep 9, 2026EPSS first tracked
0.3%
Sep 25, 2026EPSS peak
0.3% → 0.5%

quantumcloud CWE-79 #nvd #cve.org

Affected

wpbot_ai_chatbot_for_live_support_lead_generation_ai_services <= 8.7.3

Full technical detail▾

Overview

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.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org