What is CVE-2025-34080?

CVE-2025-34080 is a medium-severity vulnerability in Contec Conprosys Hmi System, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-07-01.

How severe is CVE-2025-34080?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Contec Conprosys Hmi System

CVE-2025-34080

The Contec Co.,Ltd. CONPROSYS HMI System (CHS) is vulnerable to Cross-Site Scripting (XSS) in the getqsetting.php functionality that could allow reflected execution of scripts in the browser on interaction.This issue affects CONPROSYS HMI System (CHS): before 3.7.7.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-07-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (69.1th percentile), scored 2026-10-21.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.013 · change: +0.001

Affected products

Contec Conprosys Hmi System
Contec Co.,ltd. Conprosys Hmi System (Chs) — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

jvn.jp/en/vu/JVNVU92266386/ (Third Party Advisory, third-party-advisory)
www.vulncheck.com/advisories/conprosys-hmi-system-reflected-xss (third-party-advisory)

Frequently asked questions

What is CVE-2025-34080?: CVE-2025-34080 is a medium-severity vulnerability in Contec Conprosys Hmi System, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-07-01.
How severe is CVE-2025-34080?: Medium severity. CVSS v3 base score is 6.1 out of 10.