Skip to main content

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

CVE-2019-6588

Medium
4.7/10

Summary

In Liferay Portal versions prior to 7.1.3 CE GA4, a Cross-site Scripting(XSS) vulnerability exists in the "SimpleCaptcha" API when custom code passes unsanitized input into the "url" parameter of the JSP taglib call: '<liferay-ui:captcha url="<%= url %>" /> or <liferay-captcha:captcha url="<%= url %>" />'. Without any customizations, Liferay Portal's default behavior remains secure.

  • HIGH
  • 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