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CVE-2025-23026— HTML templates containing Javascript template strings are subject to XSS in jte

Quick assessment

Affected
casid jte
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

jte（Java Template Engine）是Andreas Hager个人开发者的一个 Java 和 Kotlin 的安全快速模板。 jte 3.1.15及之前版本存在安全漏洞，该漏洞源于对JavaScript模板字符串中的反引号转义不当，容易受到跨站脚本攻击。

CVSS 6.1 · Medium EPSS 0.30% · P22

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2025-23026

Vulnerability Information
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Vulnerability Title
HTML templates containing Javascript template strings are subject to XSS in jte
Source: CVE Program / CVE List V5
Vulnerability Description
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 versions less than or equal to `3.1.15` with `script` tags or script attributes that contain Javascript template strings (backticks) are vulnerable. Users are advised to upgrade to version 3.1.16 or later to resolve this issue. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
jte 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
jte（Java Template Engine）是Andreas Hager个人开发者的一个 Java 和 Kotlin 的安全快速模板。 jte 3.1.15及之前版本存在安全漏洞，该漏洞源于对JavaScript模板字符串中的反引号转义不当，容易受到跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
casid jte < 3.1.16 -

II. Public POCs for CVE-2025-23026

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III. Intelligence Information for CVE-2025-23026

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Patches & Fixes for CVE-2025-23026 (1)

Vendor Advisories for CVE-2025-23026 (1)

Security Blog Posts for CVE-2025-23026 (1)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2025-23026

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