CVE-2023-5328Public exploit

Unauthenticated settings access via forged privilege cookie

Published Oct 1, 2023 · Updated Aug 2, 2024

Improper authentication in the SATO CL4NX-J Plus 1.13.2-u455_r2 Cookie Handler allows remote attackers to change printer settings. The handler accepts the client-supplied auth=user,level1,settings; web=true cookie value as authorization state instead of validating an authenticated session. The attacker must reach the printer from an adjacent network, and successful exploitation permits unauthorized setting changes that can affect printer operation.

CVSS severity8.8
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper authentication in the SATO CL4NX-J Plus 1.13.2-u455_r2 Cookie Handler allows remote attackers to change printer settings. The handler accepts the client-supplied auth=user,level1,settings; web=true cookie value as authorization state instead of validating an authenticated session. The attacker must reach the printer from an adjacent network, and successful exploitation permits unauthorized setting changes that can affect printer operation.

The record

CVE
CVE-2023-5328
Published
Oct 1, 2023
Updated
Aug 2, 2024
Vendor
SATO Corporation
Product
CL4NX-J Plus
Classifications
CWE-287, T1550.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.13.2-u455_r2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

SATO Corporation · CL4NX-J Plusversion=1.13.2-u455_r2

Published CVSS scores

5.8VulDBAV:A/AC:L/Au:N/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
8.8NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Weakness, pattern, technique

CWE-287Improper Authentication
T1550.004Web Session Cookie

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo