CVE-2023-0246Public exploitNetwork attack vector

Stored XSS via unneutralized added content

Published Jan 12, 2023 · Updated Nov 25, 2024

Stored XSS in the Content Handler in Earclink ESPCMS P8.21120101 allows remote authenticated users to inject script through added content. The Add Content workflow stores a script payload and later renders it in the management interface without neutralization, causing browser execution. The attack requires management login and user interaction, and its demonstrated consequence is attacker-supplied JavaScript execution in the viewer's browser.

CVSS severity5.4
Medium
EPSS probability0.55%
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 the Content Handler in Earclink ESPCMS P8.21120101 allows remote authenticated users to inject script through added content. The Add Content workflow stores a script payload and later renders it in the management interface without neutralization, causing browser execution. The attack requires management login and user interaction, and its demonstrated consequence is attacker-supplied JavaScript execution in the viewer's browser.

The record

CVE
CVE-2023-0246
Published
Jan 12, 2023
Updated
Nov 25, 2024
Vendor
Earclink
Product
ESPCMS
Classifications
CWE-79, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 25, 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=P8.21120101

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Earclink · ESPCMSversion=P8.21120101

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

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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