{"id":"CVE-2022-23624","aliases":["EUVD-2022-1103","GHSA-mmj4-777p-fpq9"],"status":"published","title":"Validation bypass in frourio-express","description":"Frourio-express is a minimal full stack framework, for TypeScript. Frourio-express users who uses frourio-express version prior to v0.26.0 and integration with class-validator through `validators/` folder are subject to a input validation vulnerability. Validators do not work properly for request bodies and queries in specific situations and some input is not validated at all. Users are advised to update frourio to v0.26.0 or later and to install `class-transformer` and `reflect-metadata`.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01244,"percentile":0.6947,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1321","CWE-20"],"published":"2022-02-07T22:15:10Z","modified":"2026-10-28T02:31:02Z","fixes":[{"ecosystem":"npm","package":"frourio-express","fixed_in":["0.26.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"frourio-express","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.26.0"}]}]},{"source":"osv","ecosystem":"npm","package":"frourio-express","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.26.0"}]}]}],"products":[{"vendor":"frourio","product":"frourio-express"},{"vendor":"frouriojs","product":"frourio-express"}],"references":[{"url":"https://github.com/frouriojs/frourio-express/security/advisories/GHSA-mmj4-777p-fpq9","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/frouriojs/frourio-express/commit/73ded5c6f9f1c126c0cb2d05c0505e9e4db142d2","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23624","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mmj4-777p-fpq9"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23624.json","tags":["advisory"]},{"url":"https://github.com/frouriojs/frourio-express","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-23624","title":"Validation bypass in frourio-express","description":"Frourio-express is a minimal full stack framework, for TypeScript. Frourio-express users who uses frourio-express version prior to v0.26.0 and integration with class-validator through `validators/` folder are subject to a input validation vulnerability. Validators do not work properly for request bodies and queries in specific situations and some input is not validated at all. Users are advised to update frourio to v0.26.0 or later and to install `class-transformer` and `reflect-metadata`.","status":"published","published":"2022-02-07T22:15:10Z","modified":"2025-04-23T19:06:56.933Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:34:29.842547Z"}],"euvd":[{"id":"EUVD-2022-1103","description":"Frourio-express is a minimal full stack framework, for TypeScript. Frourio-express users who uses frourio-express version prior to v0.26.0 and integration with class-validator through `validators/` folder are subject to a input validation vulnerability. Validators do not work properly for request bodies and queries in specific situations and some input is not validated at all. Users are advised to update frourio to v0.26.0 or later and to install `class-transformer` and `reflect-metadata`.","status":"published","published":"2022-02-07T22:15:10Z","modified":"2025-04-23T19:06:56Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:06.891582Z"}],"ghsa":[{"id":"GHSA-mmj4-777p-fpq9","title":"Validation bypass in frourio-express","description":"## 日本語\n\n### 影響\nv0.26.0以前のfrourioを使用している、かつvalidators/を利用している場合、ネストされたバリデータがリクエストのボディーとクエリに対して正しく働かないケースがあります。また、リクエストに対してバリデーションが効かなくなる入力があります。\n\n### パッチ\nfrourioをv0.26.0かそれ以降のバージョンにアップデートをお願いします。frourio を使用したプロジェクトには `class-transformer` と `reflect-metadata` の依存への追加も必要となります。\n\n### ワークアラウンド\ncontroller側で自分でclass-transformerを使用してチェックする、vaildatorを使わない、など。\n\n### さらなる情報\n\nこのセキュリティ勧告に関する質問やコメントについては、以下の方法でお問い合わせいただけます。\n* [frourio](https://github.com/frouriojs/frourio)にIssueを開く。\n\n## English\n\n### Impact\nFrourio users who uses frourio version prior to v0.26.0 and integration with class-validator through `validators/` folder. Validators does not work properly for request bodies and queries in specific situations. Addtionally, some kind of input is not validated. (false positives)\n\n### Patches\nPlease update your frourio to v0.26.0 or later. You also need to install `class-transformer` and `reflect-metadata` to your project.\n\n### Workarounds\nValidate objects from request with class-transformer in controllers by yourself, or prevent using validators.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [frourio](https://github.com/frouriojs/frourio)\n","status":"published","published":"2022-02-07T22:38:37Z","modified":"2023-07-13T19:05:32Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20","CWE-1321"],"updated_at":"2026-11-02T14:36:57.310051Z"}],"nvd":[{"id":"CVE-2022-23624","description":"Frourio-express is a minimal full stack framework, for TypeScript. Frourio-express users who uses frourio-express version prior to v0.26.0 and integration with class-validator through `validators/` folder are subject to a input validation vulnerability. Validators do not work properly for request bodies and queries in specific situations and some input is not validated at all. Users are advised to update frourio to v0.26.0 or later and to install `class-transformer` and `reflect-metadata`.","status":"published","published":"2022-02-07T23:15:07.84Z","modified":"2026-06-17T04:30:30.49Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20","CWE-1321"],"updated_at":"2026-11-02T14:07:11.52734Z"}],"osv":[{"id":"CVE-2022-23624","title":"Validation bypass in frourio-express","description":"Frourio-express is a minimal full stack framework, for TypeScript. Frourio-express users who uses frourio-express version prior to v0.26.0 and integration with class-validator through `validators/` folder are subject to a input validation vulnerability. Validators do not work properly for request bodies and queries in specific situations and some input is not validated at all. Users are advised to update frourio to v0.26.0 or later and to install `class-transformer` and `reflect-metadata`.","status":"published","published":"2022-02-07T22:15:10Z","modified":"2026-10-28T02:31:02.741328723Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:44:24.061177Z"},{"id":"GHSA-mmj4-777p-fpq9","title":"Validation bypass in frourio-express","description":"## 日本語\n\n### 影響\nv0.26.0以前のfrourioを使用している、かつvalidators/を利用している場合、ネストされたバリデータがリクエストのボディーとクエリに対して正しく働かないケースがあります。また、リクエストに対してバリデーションが効かなくなる入力があります。\n\n### パッチ\nfrourioをv0.26.0かそれ以降のバージョンにアップデートをお願いします。frourio を使用したプロジェクトには `class-transformer` と `reflect-metadata` の依存への追加も必要となります。\n\n### ワークアラウンド\ncontroller側で自分でclass-transformerを使用してチェックする、vaildatorを使わない、など。\n\n### さらなる情報\n\nこのセキュリティ勧告に関する質問やコメントについては、以下の方法でお問い合わせいただけます。\n* [frourio](https://github.com/frouriojs/frourio)にIssueを開く。\n\n## English\n\n### Impact\nFrourio users who uses frourio version prior to v0.26.0 and integration with class-validator through `validators/` folder. Validators does not work properly for request bodies and queries in specific situations. Addtionally, some kind of input is not validated. (false positives)\n\n### Patches\nPlease update your frourio to v0.26.0 or later. You also need to install `class-transformer` and `reflect-metadata` to your project.\n\n### Workarounds\nValidate objects from request with class-transformer in controllers by yourself, or prevent using validators.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [frourio](https://github.com/frouriojs/frourio)\n","status":"published","published":"2022-02-07T22:38:37Z","modified":"2023-11-08T04:08:25.517969Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-1321","CWE-20"],"updated_at":"2026-11-02T15:46:52.170928Z"}]}}