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

CVE-2021-24373

Severity Medium
Score 4.3/10

Summary

The WP Hardening – Fix Your WordPress Security WordPress plugin before 1.2.2 did not sanitise or escape the historyvalue GET parameter before outputting it in a Javascript block, leading to a reflected Cross-Site Scripting issue.

  • MEDIUM
  • NETWORK
  • NONE
  • PARTIAL
  • NONE
  • 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