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

CVE-2024-21637

Medium
5.4/10

Summary

Authentik is an open-source Identity Provider. Authentik is vulnerable to a reflected Cross-Site Scripting (XSS) vulnerability via JavaScript-URIs in OpenID Connect flows with "response_mode=form_post". The user could use the described attacks to perform a privilege escalation. This issue affects goauthentik.io versions through version/2023.8.5, and version/2023.10.0 through version/2023.10.5.

  • LOW
  • NETWORK
  • LOW
  • CHANGED
  • REQUIRED
  • LOW
  • 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