CVE-2023-23553Network attack vector

Session-information theft via undisclosed web-interface XSS

Published Feb 13, 2023 · Updated Jan 16, 2025

Cross-site scripting in ControlByWeb X-400 firmware before 2.8 allows remote attackers to steal private and session information. CISA and ControlByWeb have not publicly identified the affected web-interface parameter or the output-encoding operation that fails on untrusted input. Exploitation requires an interface user to interact with attacker-supplied content; the reported consequence is session and private-data disclosure.

CVSS severity6.1
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in ControlByWeb X-400 firmware before 2.8 allows remote attackers to steal private and session information. CISA and ControlByWeb have not publicly identified the affected web-interface parameter or the output-encoding operation that fails on untrusted input. Exploitation requires an interface user to interact with attacker-supplied content; the reported consequence is session and private-data disclosure.

The record

CVE
CVE-2023-23553
Published
Feb 13, 2023
Updated
Jan 16, 2025
Vendor
ControlByWeb
Product
X-400
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 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 <2.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ControlByWeb · X-400version=0 <2.8

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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