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01 Record

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

UnratedPUBLISHEDCNA: schneider
CNA base scoreUnratedNo CNA CVSS vector

02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.63% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 50.3% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2018-11-30 19:00Z7 YR AGO
Last updated
2024-08-05 06:37Z2 YR AGO
Reserved
2018-03-08
Assigning CNA
schneider
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
  • CWE-352Cross-Site Request Forgery (CSRF)Compound
Data version
5.1
Document digest
bde5021fe45fa497c6fdad75d6d216e7e962681f7313ce19ac1dbebe2d33c0b9

05 Affected products

VendorProductVersionsPlatforms
Schneider Electric SEEmbedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200—

06 References