CVE-2025-0329Public exploitNetwork attack vector

Stored XSS via unescaped Agent name setting

Published May 15, 2025 · Updated May 20, 2025

Stored XSS in QuantumCloud WPBot before 6.2.4 allows remote authenticated users to execute JavaScript through a saved chatbot setting. The Agent name field in the language settings accepts an HTML event-handler payload and later renders the saved value in the frontend chatbot without adequate sanitization or escaping. Administrator access is required to save the payload, and script execution occurs when a visitor opens the chatbot, exposing that visitor's browser session to attacker-controlled actions.

CVSS severity4.8
Medium
EPSS probability0.26%
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 6.2.4 allows remote authenticated users to execute JavaScript through a saved chatbot setting. The Agent name field in the language settings accepts an HTML event-handler payload and later renders the saved value in the frontend chatbot without adequate sanitization or escaping. Administrator access is required to save the payload, and script execution occurs when a visitor opens the chatbot, exposing that visitor's browser session to attacker-controlled actions.

The record

CVE
CVE-2025-0329
Published
May 15, 2025
Updated
May 20, 2025
Vendor
QuantumCloud
Product
WPBot
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 15, 2025CVE publishedPublication date reported by the CVE source.
  2. May 20, 2025Record 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 <6.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

QuantumCloud · WPBotversion=0 <6.2.4

Published CVSS scores

4.8OSV CVE record conversionCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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')
T1203Exploitation for Client Execution

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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