CVE-2023-4298Network attack vector

Admin stored XSS via unsanitized settings

Published Sep 4, 2023 · Updated Apr 23, 2025

Stored cross-site scripting in 123.chat – 1:1 Live Video Chat Tool Plugin before 1.3.1 allows remote authenticated users to execute scripts via admin settings. The plugin fails to sanitize and escape selected administrator settings before storing and rendering them, allowing injected JavaScript to persist in pages viewed by other users. Exploitation requires administrator-level access and a multisite or unfiltered_html-disabled configuration; execution occurs when a user opens the affected page.

CVSS severity4.8
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in 123.chat – 1:1 Live Video Chat Tool Plugin before 1.3.1 allows remote authenticated users to execute scripts via admin settings. The plugin fails to sanitize and escape selected administrator settings before storing and rendering them, allowing injected JavaScript to persist in pages viewed by other users. Exploitation requires administrator-level access and a multisite or unfiltered_html-disabled configuration; execution occurs when a user opens the affected page.

The record

CVE
CVE-2023-4298
Published
Sep 4, 2023
Updated
Apr 23, 2025
Vendor
123.chat GmbH
Product
123.chat – 1:1 Live Video Chat Tool Plugin
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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 <1.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

123.chat GmbH · 123.chat – 1:1 Live Video Chat Tool Pluginversion=0 <1.3.1

Published CVSS scores

4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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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