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

CVE-2025-23026

Medium
6.1/10

Summary

jte (Java Template Engine) is a secure and lightweight template engine for Java and Kotlin. In affected versions, Jte HTML templates with `script` tags or script attributes that include a Javascript template string (backticks) are subject to XSS. The `javaScriptBlock` and `javaScriptAttribute` methods in the `Escape` class do not escape backticks, which are used for Javascript template strings. Dollar signs in template strings should also be escaped as well to prevent undesired interpolation. HTML templates rendered by Jte's `OwaspHtmlTemplateOutput` in affected versions with `script` tags or script attributes that contain Javascript template strings (backticks) are vulnerable. This issue affects gg.jte:jte-runtime versions prior to 3.1.16. Users are advised to upgrade to the fixed version to resolve this issue. There are no known workarounds for this vulnerability.

  • LOW
  • NETWORK
  • LOW
  • CHANGED
  • REQUIRED
  • NONE
  • 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