CVE-2026-118257

Vue I18n is the internationalization plugin for Vue.js. From 11.1.10 until 11.4.14 and from 12.0.0-alpha.4 until 12.0.0-alpha.5, sanitizeTranslatedHtml() escapes markup and event-handler text inside an iframe srcdoc value but leaves the srcdoc attribute active. Browsers decode the character references and parse the value as a same-origin nested HTML document, allowing attacker-controlled parameters or translation content placed in srcdoc to execute script when applications enable escapeParameter and render translations as HTML through v-html. Versions 9.14.5 and 10.0.8 are also affected and are no longer supported, while i18n-t rendering is not affected. This issue is fixed in versions 11.4.14 and 12.0.0-alpha.5.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/intlify/vue-i18n/commit/43391d20e7c85403cb59bdb21b5d542819f54042
https://github.com/intlify/vue-i18n/pull/2679
https://github.com/intlify/vue-i18n/releases/tag/v11.4.14
https://github.com/intlify/vue-i18n/releases/tag/v12.0.0-alpha.5
https://github.com/intlify/vue-i18n/security/advisories/GHSA-83rm-6c8r-g728

Configurations

No configuration.

History

28 Oct 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-28 19:17

Updated : 2026-10-29 21:17

NVD link : CVE-2026-118257

Mitre link : CVE-2026-118257

CVE.ORG link : CVE-2026-118257

JSON object : View

Products Affected

No product.

CWE

CWE-79

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

CWE-116

Improper Encoding or Escaping of Output

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