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

Cx9b9f022f-6dff

  • marked
  • org.webjars.bower:marked
  • org.webjars.npm:marked
Severity Medium
Score 6.1/10

Summary

Marked prior to 0.3.9 is vulnerable to Cross-Site Scripting. When mangling is disabled via option "mangle", marked don't escape target href. This allows attacker to inject arbitrary html-event into resulting a tag.

  • 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.

Advisory Timeline

  • Published