Skip to main content

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

CVE-2021-24487

High
8.8/10

Summary

The St-Daily-Tip WordPress plugin through 4.7 does not have any CSRF check in place when saving its 'Default Text to Display if no tips' setting, and was also lacking sanitisation as well as escaping before outputting it the page. This could allow attacker to make logged in administrators set a malicious payload in it, leading to a Stored Cross-Site Scripting issue

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • REQUIRED
  • NONE
  • HIGH
  • HIGH

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