CVE-2023-5767Network attack vector

Cross-site scripting via unsanitized RDT language file

Published Dec 4, 2023 · Updated Aug 2, 2024

Cross-site scripting in RTU500 CMU Firmware allows remote authenticated users to execute script through a crafted RDT language file. The webserver improperly sanitizes the file before using its contents in a web page, allowing embedded script content to remain executable. Execution is limited to the web interface's browser context; Hitachi Energy's assessment requires high privileges and no additional user interaction.

CVSS severity6.0
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 RTU500 CMU Firmware allows remote authenticated users to execute script through a crafted RDT language file. The webserver improperly sanitizes the file before using its contents in a web page, allowing embedded script content to remain executable. Execution is limited to the web interface's browser context; Hitachi Energy's assessment requires high privileges and no additional user interaction.

The record

CVE
CVE-2023-5767
Published
Dec 4, 2023
Updated
Aug 2, 2024
Vendor
Hitachi Energy
Product
RTU500 Series CMU Firmware
Classifications
CWE-79
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 4, 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=RTU500 series CMU Firmware version 12.0.1 – 12.0.14
  2. Affected versionversion=RTU500 series CMU Firmware version 12.2.1 – 12.2.11
  3. Affected versionversion=RTU500 series CMU Firmware version 12.4.1 – 12.4.11
  4. Affected versionversion=RTU500 series CMU Firmware version 12.6.1 – 12.6.9
  5. Affected versionversion=RTU500 series CMU Firmware version 12.7.1 – 12.7.6
  6. Affected versionversion=RTU500 series CMU Firmware version 13.2.1 – 13.2.6
  7. Affected versionversion=RTU500 series CMU Firmware version 13.4.1 – 13.4.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Hitachi Energy · RTU500 Series CMU Firmwareversion=RTU500 series CMU Firmware version 12.0.1 – 12.0.14; version=RTU500 series CMU Firmware version 12.2.1 – 12.2.11; version=RTU500 series CMU Firmware version 12.4.1 – 12.4.11; version=RTU500 series CMU Firmware version 12.6.1 – 12.6.9; version=RTU500 series CMU Firmware version 12.7.1 – 12.7.6; version=RTU500 series CMU Firmware version 13.2.1 – 13.2.6; version=RTU500 series CMU Firmware version 13.4.1 – 13.4.3

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.0Hitachi EnergyCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

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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