CVE-2023-23572Network attack vector

Script execution via stored settings payload

Published Apr 11, 2023 · Updated Feb 11, 2025

Stored cross-site scripting in Seiko Epson Web Config allows remote authenticated users with administrative privileges to execute scripts. A crafted page causes Web Config to embed a script in device settings and execute it when another user opens the affected settings page. Administrative access is required to store the payload, and a user must visit the settings page; the script runs in that user's browser context.

CVSS severity4.8
Medium
EPSS probability0.50%
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 Seiko Epson Web Config allows remote authenticated users with administrative privileges to execute scripts. A crafted page causes Web Config to embed a script in device settings and execute it when another user opens the affected settings page. Administrative access is required to store the payload, and a user must visit the settings page; the script runs in that user's browser context.

The record

CVE
CVE-2023-23572
Published
Apr 11, 2023
Updated
Feb 11, 2025
Vendor
Seiko Epson Corporation
Product
Web Config
Classifications
CWE-79, T1189
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 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=unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Seiko Epson Corporation · Web Configversion=unspecified

Published CVSS scores

4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.8JPCERT/CC and IPACVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
3.5JPCERT/CC and IPAAV:N/AC:M/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.

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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 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.

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Technologies

Your stack

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Your stack

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