XSS in Schneider-Electric Modicom Bmxnor0200h
CVE-2018-7831
An Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 allowing an attacker to send a specially crafted URL to a currently authenticated web server user to execute a password change on the web server.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Schneider-Electric Modicom Bmxnor0200h
- Schneider-Electric Modicom Bmxnor0200h Firmware
- Schneider-Electric Modicom M340
- Schneider-Electric Modicom M340 Firmware
- Schneider-Electric Modicom Premium
- Schneider-Electric Modicom Premium Firmware
- Schneider-Electric Modicom Quantum
- Schneider-Electric Modicom Quantum Firmware
- Schneider Electric Se Embedded Web Servers In All Modicon M340, Premium, Quantum Plcs And Bmxnor0200 — versions Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200
Weakness classification (CWE)
References
- www.tenable.com/security/research/tra-2018-38 (Exploit, Third Party Advisory)
- www.schneider-electric.com/en/download/document/SEVD-2018-327-01/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-7831?
- CVE-2018-7831 is a high-severity vulnerability in Schneider-Electric Modicom Bmxnor0200h, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2018-11-30.
- How severe is CVE-2018-7831?
- High severity. CVSS v3 base score is 8.8 out of 10.