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

CVE-2021-24540

Medium
5.4/10

Summary

The Wonder Video Embed WordPress plugin before 1.8 does not escape parameters of its wonderplugin_video shortcode, which could allow users with a role as low as Contributor to perform Stored XSS attacks.

  • 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