{"id":"CVE-2026-41692","sourceIdentifier":"security-advisories@github.com","published":"2026-05-07T21:16:29.717","lastModified":"2026-10-26T20:10:00.160","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"i18nextify es una biblioteca JavaScript que añade internacionalización a sitios web mediante una etiqueta script, sin cambios en el código fuente. Las versiones anteriores a la 4.0.8 sustituyen los tokens de interpolación {{key}} dentro de los valores de los atributos src y href con la cadena sin procesar devuelta por i18next.t(). La lógica de sustitución en src/localize.js (el gestor replaceInside) solo se protege contra un prefijo de origen http:// duplicado - no valida el esquema de URL del valor sustituido. Un valor traducido como javascript_disabled: alert(1) o javascript_disabled: ,[script_tag]...[/script] se aplica sin cambios al atributo DOM activo cuando un atacante puede influir en el contenido de un archivo de traducción o en la respuesta del backend de traducción - por ejemplo, a través de una CDN de traducción comprometida, configuraciones regionales aportadas por usuarios, un MitM en un backend HTTP sin cifrar, o acceso de escritura al JSON de traducción. Este problema fue parcheado en la versión 4.0.8."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"i18next","product":"i18nextify","versions":[{"version":"< 4.0.8","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":1.6,"impactScore":2.7},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":1.6,"impactScore":2.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-05-11T18:03:40.834025Z","id":"CVE-2026-41692","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-79"},{"lang":"en","value":"CWE-94"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:i18next:i18nextify:*:*:*:*:*:*:*:*","versionEndExcluding":"4.0.8","matchCriteriaId":"75BE4A58-77DC-4A0B-B94D-B7AFACC8A8B9"}]}]}],"references":[{"url":"https://github.com/i18next/i18nextify/commit/16f23dbcdcf893673587f7a03355bf7ce0a0e49e","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/i18next/i18nextify/security/advisories/GHSA-6457-mxpq-4fqq","source":"security-advisories@github.com","tags":["Vendor Advisory"]}]}