{"id":"GHSA-cmh5-qc8w-xvcq","summary":"Cross-Site Scripting in i18next","details":"Affected versions of `i18next` may fail to sanitize user input when certain configuration options are used. When using the `.init` method, passing interpolation options without passing an `escapeValue` will default to `undefined` rather than the assumed `true`. \n\n## Proof of Concept\n\n```js\nvar init = i18n.init({\n  interpolation: {\n    prefix: \"__\",\n    suffix: \"__\",\n    escapeValue: true\n  }\n}, function(){\n  var test = i18n.t('__firstName__ __lastName__', {\n        firstName: 'Bob',\n        lastName: '[\"foo\",\"bar\"]',\n  });\n  console.log(test);\n});\n```\nWhen `escapeValue` is explicitly passed, the result of `test` is: \n\n```html\n<script>alert(1)</script> Johnson\n```\n\nThis is supposed to be the default. However, if `escapeValue` is not included, the result is the unescaped string: \n \n```html\n\u003cscript\u003ealert(1)\u003c/script\u003e Johnson\n```\n\n\n## Recommendation\n\nUpdate to version 3.4.4 or later.","aliases":["CVE-2017-16010"],"modified":"2023-11-08T03:58:59.586536Z","published":"2018-07-24T19:58:33Z","database_specific":{"github_reviewed_at":"2020-06-16T21:31:57Z","nvd_published_at":null,"cwe_ids":["CWE-79"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-16010"},{"type":"WEB","url":"https://github.com/i18next/i18next/pull/826"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-cmh5-qc8w-xvcq"},{"type":"WEB","url":"https://www.npmjs.com/advisories/326"}],"affected":[{"package":{"name":"i18next","ecosystem":"npm","purl":"pkg:npm/i18next"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"3.4.4"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/07/GHSA-cmh5-qc8w-xvcq/GHSA-cmh5-qc8w-xvcq.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}