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

CVE-2024-8291

Medium
4.8/10

Summary

Concrete CMS versions prior to 8.5.19 and 9.0.x prior to 9.3.4 are vulnerable to Stored Cross-Site Scripting (XSS) in the Image Editor Background Color. A rogue admin could add malicious code to the "Thumbnails/Add-Type". Thanks to Alexey Solovyev for reporting this issue.

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