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CVE-2026-41692— i18nextify is vulnerable to DOM XSS via javascript:/data: URL schemes in translated href/src attributes

Quick assessment

Affected
i18next i18nextify
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.

i18nextify是i18next开源的一个Java库应用软件 i18nextify 4.0.8之前版本存在跨站脚本漏洞，该漏洞源于src和href属性值中的{{key}}插值令牌未验证URL方案，可能导致注入javascript或data等危险URL。

CVSS 4.7 · Medium EPSS 0.22% · P11

Affected Version Matrix 1

VendorProduct Version RangeStatus
i18next i18nextify < 4.0.8 affected
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I. Basic Information for CVE-2026-41692

Vulnerability Information
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Vulnerability Title
i18nextify is vulnerable to DOM XSS via javascript:/data: URL schemes in translated href/src attributes
Source: CVE Program / CVE List V5
Vulnerability Description
i18nextify is a JavaScript library that adds website internationalization via a script tag, without source code changes. Versions prior to 4.0.8 substitute {{key}} interpolation tokens inside src and href attribute values with the raw string returned by i18next.t(). The substitution logic in src/localize.js (the replaceInside handler) only guards against a duplicated http:// origin prefix — it does not validate the URL scheme of the substituted value. A translated value such as javascript:alert(1) or data:text/html,<script>...</script> is applied unchanged to the live DOM attribute when an attacker can influence the content of a translation file or the translation-backend response — for example, via a compromised translation CDN, user-contributed locales, a MITM on a plain-HTTP backend, or write access to the translation JSON. This issue was patched in version 4.0.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/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
i18nextify 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
i18nextify是i18next开源的一个Java库应用软件 i18nextify 4.0.8之前版本存在跨站脚本漏洞，该漏洞源于src和href属性值中的{{key}}插值令牌未验证URL方案，可能导致注入javascript或data等危险URL。
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
i18next i18nextify < 4.0.8 -

II. Public POCs for CVE-2026-41692

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III. Intelligence Information for CVE-2026-41692

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Patches & Fixes for CVE-2026-41692 (1)

Vendor Advisories for CVE-2026-41692 (1)

IV. Related Vulnerabilities

Same vendor: i18next
Same weakness: CWE-79

V. Comments for CVE-2026-41692

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