CVE-2023-2811Public exploitNetwork attack vector

Administrator-level stored XSS via unescaped chatbot settings

Published Jun 19, 2023 · Updated Dec 11, 2024

Stored XSS in QuantumCloud WPBot before 4.5.6 allows remote authenticated users to execute scripts through chatbot settings. The Language Settings page stores the Welcome to Help Section, Type and Hit Enter, and clear chat history fields without sanitizing or escaping their output. Administrator privileges and either WordPress multisite or disabled unfiltered_html are required; the injected script runs when administrators configure the chatbot or clients use it.

CVSS severity4.8
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in QuantumCloud WPBot before 4.5.6 allows remote authenticated users to execute scripts through chatbot settings. The Language Settings page stores the Welcome to Help Section, Type and Hit Enter, and clear chat history fields without sanitizing or escaping their output. Administrator privileges and either WordPress multisite or disabled unfiltered_html are required; the injected script runs when administrators configure the chatbot or clients use it.

The record

CVE
CVE-2023-2811
Published
Jun 19, 2023
Updated
Dec 11, 2024
Vendor
QuantumCloud
Product
WPBot
Classifications
CWE-79
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 11, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.5.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

QuantumCloud · WPBotversion=0 <4.5.6

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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