{"id":"CVE-2021-21278","aliases":["EUVD-2021-2237","GHSA-pgjj-866w-fc5c"],"status":"published","title":"Risk of code injection in RSSHub","description":"RSSHub is an open source, easy to use, and extensible RSS feed generator. In RSSHub before version 7f1c430 (non-semantic versioning) there is a risk of code injection. Some routes use `eval` or `Function constructor`, which may be injected by the target site with unsafe code, causing server-side security issues The fix in version 7f1c430 is to temporarily remove the problematic route and added a `no-new-func` rule to eslint.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01604,"percentile":0.76201,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-74"],"published":"2021-01-26T20:25:15Z","modified":"2026-10-20T10:54:44Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"rsshub","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.0.0"}]}]},{"source":"osv","ecosystem":"npm","package":"rsshub","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"1.0.0"}]}]}],"products":[{"vendor":"diygod","product":"rsshub"},{"vendor":"rsshub","product":"rsshub"}],"references":[{"url":"https://github.com/DIYgod/RSSHub/security/advisories/GHSA-pgjj-866w-fc5c","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/DIYgod/RSSHub/commit/7f1c43094e8a82e4d8f036ff7d42568fed00699d","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://www.npmjs.com/package/rsshub","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21278","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-pgjj-866w-fc5c"},{"url":"https://github.com/DIYgod/RSSHub","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-21278","title":"Risk of code injection in RSSHub","description":"RSSHub is an open source, easy to use, and extensible RSS feed generator. In RSSHub before version 7f1c430 (non-semantic versioning) there is a risk of code injection. Some routes use `eval` or `Function constructor`, which may be injected by the target site with unsafe code, causing server-side security issues The fix in version 7f1c430 is to temporarily remove the problematic route and added a `no-new-func` rule to eslint.","status":"published","published":"2021-01-26T20:25:15Z","modified":"2024-08-03T18:09:15.121Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:33:00.137099Z"}],"euvd":[{"id":"EUVD-2021-2237","description":"RSSHub is an open source, easy to use, and extensible RSS feed generator. In RSSHub before version 7f1c430 (non-semantic versioning) there is a risk of code injection. Some routes use `eval` or `Function constructor`, which may be injected by the target site with unsafe code, causing server-side security issues The fix in version 7f1c430 is to temporarily remove the problematic route and added a `no-new-func` rule to eslint.","status":"published","published":"2021-01-26T20:25:15Z","modified":"2024-08-03T18:09:15Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-03T03:25:06.913643Z"}],"ghsa":[{"id":"GHSA-pgjj-866w-fc5c","title":"Risk of code injection","description":"### Impact\nSome routes use `eval` or `Function constructor`, which may be injected by the target site with unsafe code, causing server-side security issues\n\n### Patches\nTemporarily removed the problematic route and added a `no-new-func` rule to eslint\nSelf-built users should upgrade to 7f1c430 and later as soon as possible\n\n### Credits\nTencent Woodpecker Security Team\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [https://github.com/DIYgod/RSSHub/issues](https://github.com/DIYgod/RSSHub/issues)\n* Email us at [i@diygod.me](mailto:i@diygod.me)","status":"published","published":"2021-10-12T16:03:43Z","modified":"2023-02-01T05:06:28Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:36:39.086869Z"}],"nvd":[{"id":"CVE-2021-21278","description":"RSSHub is an open source, easy to use, and extensible RSS feed generator. In RSSHub before version 7f1c430 (non-semantic versioning) there is a risk of code injection. Some routes use `eval` or `Function constructor`, which may be injected by the target site with unsafe code, causing server-side security issues The fix in version 7f1c430 is to temporarily remove the problematic route and added a `no-new-func` rule to eslint.","status":"published","published":"2021-01-26T21:15:12.673Z","modified":"2026-06-17T03:35:10.85Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:06:49.660551Z"}],"osv":[{"id":"CVE-2021-21278","description":"RSSHub is an open source, easy to use, and extensible RSS feed generator. In RSSHub before version 7f1c430 (non-semantic versioning) there is a risk of code injection. Some routes use `eval` or `Function constructor`, which may be injected by the target site with unsafe code, causing server-side security issues The fix in version 7f1c430 is to temporarily remove the problematic route and added a `no-new-func` rule to eslint.","status":"published","published":"2021-01-26T21:15:12.673Z","modified":"2026-10-20T10:54:44.968973544Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:18.004149Z"},{"id":"GHSA-pgjj-866w-fc5c","title":"Risk of code injection","description":"### Impact\nSome routes use `eval` or `Function constructor`, which may be injected by the target site with unsafe code, causing server-side security issues\n\n### Patches\nTemporarily removed the problematic route and added a `no-new-func` rule to eslint\nSelf-built users should upgrade to 7f1c430 and later as soon as possible\n\n### Credits\nTencent Woodpecker Security Team\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [https://github.com/DIYgod/RSSHub/issues](https://github.com/DIYgod/RSSHub/issues)\n* Email us at [i@diygod.me](mailto:i@diygod.me)","status":"published","published":"2021-10-12T16:03:43Z","modified":"2026-09-13T11:56:31.857641533Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T15:46:53.244788Z"}]}}