CVE-2018-7831: schneider electric se embedded web servers in all modicon m340, premium, quantum plcs and bmxnor0200 Cross-site Scripting

Vulnerability summary

CVE-2018-7831 is a high (CVSS 8.8) Cross-site Scripting vulnerability in schneider electric se embedded web servers in all modicon m340, premium, quantum plcs and bmxnor0200. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 49.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 30-11-2018
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

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.

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
• CWE-352Cross-Site Request Forgery (CSRF)The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.