Improper Neutralization Affecting gg.jte:jte-runtime package, versions [,3.1.16)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-GGJTE-8622671
- published14 Jan 2025
- disclosed13 Jan 2025
- creditJacob Peterson
Introduced: 13 Jan 2025
CVE-2025-23026 (opens in a new tab)How to fix?
Upgrade gg.jte:jte-runtime to version 3.1.16 or higher.
Overview
Affected versions of this package are vulnerable to Improper Neutralization due to improper escaping of backticks and dollar signs in the javaScriptBlock and javaScriptAttribute methods. An attacker can execute arbitrary JavaScript code.
PoC
Use the Jte Gradle Plugin with the following code in src/jte/xss.jte:
@param String someMessage
<!DOCTYPE html>
<html lang="en">
<head>
<title>XSS Test</title>
<script>window.someVariable = `${someMessage}`;</script>
</head>
<body>
<h1>XSS Test</h1>
</body>
</html>
Use the following Java code to demonstrate the XSS vulnerability:
final StringOutput output = new StringOutput();
JtexssGenerated.render(new OwaspHtmlTemplateOutput(output), null, "` + alert(`xss`) + `");
renderHtml(output);