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Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in knockout

Cxb90148b9-bcbe

  • knockout
Medium
6.1/10

Summary

The package `knockout` through 3.5.0-beta is vulnerable to Cross-Site Scripting due to missing sanitation of the `name` parameter. The function `setElementName()` in file `utils.js` creates the element without sanitizing the element's name which could lead to XSS in old IE browser (IE7 and older). This affects the confidentiality.

  • LOW
  • NETWORK
  • LOW
  • CHANGED
  • REQUIRED
  • NONE
  • LOW
  • NONE

CWE-79 - Cross Site Scripting

Cross-Site Scripting, commonly referred to as XSS, is the most dominant class of vulnerabilities. It allows an attacker to inject malicious code into a pregnable web application and victimize its users. The exploitation of such a weakness can cause severe issues such as account takeover, and sensitive data exfiltration. Because of the prevalence of XSS vulnerabilities and their high rate of exploitation, it has remained in the OWASP top 10 vulnerabilities for years.

References

Advisory Timeline

  • Published