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Vulnerability record · CVE-2023-5769 · published 14 December 2023

CVE-2023-5769: Hitachienergy rtu520 firmware cross-site scripting vulnerability

Hitachienergy · Rtu520 Firmware

A vulnerability exists in the webserver that affects the RTU500 series product versions listed below. A malicious actor could perform cross-site scripting on the webserver due to user input being improperly sanitized.

6.1 CVSS 3.1 Medium EPSS 0.41% · top 67.7% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability exists in the webserver that affects the RTU500 series product versions listed below. A malicious actor could perform cross-site scripting on the webserver due to user input being improperly sanitized.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://publisher.hitachienergy.com/preview?DocumentId=8DBD000176&languageCode=en&Preview=true Vendor Advisory
https://publisher.hitachienergy.com/preview?DocumentId=8DBD000176&languageCode=en&Preview=true Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.7CVE-2026-1773Hitachienergy rtu540 firmware vulnerabilityIEC 60870-5-104 used in RTU500: Potential Denial of Service impact on reception of invalid U-format frame. Product is only affected if IEC 60870-5-10…EPSS 0.42%7.5CVE-2022-2081Hitachienergy rtu520 firmware out-of-bounds write vulnerabilityA vulnerability exists in the HCI Modbus TCP function included in the product versions listed above. If the HCI Modbus TCP is enabled and configured,…EPSS 0.64%6.1CVE-2023-5767Hitachienergy rtu520 firmware cross-site scripting vulnerabilityA vulnerability exists in the webserver that affects the RTU500 series product versions listed below. A malicious actor could perform cross-site scri…EPSS 0.39%6.1CVE-2023-5768Hitachienergy rtu520 firmware cross-site scripting vulnerabilityA vulnerability exists in the HCI IEC 60870-5-104 that affects the RTU500 series product versions listed below. Incomplete or wrong received APDU fra…EPSS 0.41%5.3CVE-2026-1772Hitachienergy rtu520 firmware vulnerabilityRTU500 web interface: An unprivileged user can read user management information. The information cannot be accessed via the RTU500 web user interface…EPSS 0.27%6.1CVE-2026-42897Microsoft Exchange Server XSS enables spoofingMicrosoft Exchange Server and Exchange Server Subscription Edition fail to neutralize input during web page generation, a cross-site scripting flaw (…KEVEPSS 0.52%analysed6.1CVE-2025-48700Zimbra Classic UI stored XSS via crafted email HTMLZimbra Collaboration Suite Classic UI fails to properly sanitize HTML content in email messages, allowing crafted tag structures and attribute values…KEVEPSS 1.7%analysed6.1CVE-2025-66376Zimbra Collaboration Classic UI stored XSS via CSS @import in emailZimbra Collaboration Suite 10 before 10.0.18 and 10.1 before 10.1.13 allows stored cross-site scripting in the Classic UI through CSS @import directi…KEVEPSS 20%analysed

Source: NIST National Vulnerability Database (record CVE-2023-5769), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.