{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-118257",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-27T20:13:55.314Z",
        "datePublished": "2026-10-28T18:23:49.400Z",
        "dateUpdated": "2026-10-28T18:23:49.400Z"
    },
    "containers": {
        "cna": {
            "title": "Vue I18n: escapeParameter does not prevent XSS through srcdoc in translation messages",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-79",
                            "lang": "en",
                            "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-116",
                            "lang": "en",
                            "description": "CWE-116: Improper Encoding or Escaping of Output",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 7.2,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "NONE",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/intlify/vue-i18n/security/advisories/GHSA-83rm-6c8r-g728",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/intlify/vue-i18n/security/advisories/GHSA-83rm-6c8r-g728"
                },
                {
                    "name": "https://github.com/intlify/vue-i18n/pull/2679",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/intlify/vue-i18n/pull/2679"
                },
                {
                    "name": "https://github.com/intlify/vue-i18n/commit/43391d20e7c85403cb59bdb21b5d542819f54042",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/intlify/vue-i18n/commit/43391d20e7c85403cb59bdb21b5d542819f54042"
                },
                {
                    "name": "https://github.com/intlify/vue-i18n/releases/tag/v11.4.14",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/intlify/vue-i18n/releases/tag/v11.4.14"
                },
                {
                    "name": "https://github.com/intlify/vue-i18n/releases/tag/v12.0.0-alpha.5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/intlify/vue-i18n/releases/tag/v12.0.0-alpha.5"
                }
            ],
            "affected": [
                {
                    "vendor": "intlify",
                    "product": "vue-i18n",
                    "versions": [
                        {
                            "version": "= 9.14.5",
                            "status": "affected"
                        },
                        {
                            "version": "= 10.0.8",
                            "status": "affected"
                        },
                        {
                            "version": ">= 11.1.10, < 11.4.14",
                            "status": "affected"
                        },
                        {
                            "version": ">= 12.0.0-alpha.4, < 12.0.0-alpha.5",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-28T18:23:49.400Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "source": {
                "advisory": "GHSA-83rm-6c8r-g728",
                "discovery": "UNKNOWN"
            }
        }
    }
}