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

CVE-2019-14668

Medium
5.4/10

Summary

Firefly III up to 4.7.17.3 is vulnerable to stored XSS due to the lack of filtration of user-supplied data in the transaction description field. The JavaScript code is executed during deletion of a transaction link.

  • 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