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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…
High8.8EPSS 0.64%
- Published
- Updated
- Reserved
- Assigned by
- schneider
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 attacker to send a specially crafted URL to a currently authenticated web server user to execute a password change on the web server.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.64% · top 49% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
- Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
- CWE-79 (opens in a new tab)All about CWE-79 and its CVEs
- CWE-352 (opens in a new tab)All about CWE-352 and its CVEs
Affected products
Schneider Electric SE · Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200
- affected Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200
References (2)
- https://www.tenable.com/security/research/tra-2018-38 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/ (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-7831)Record last updated .