{"id":"CVE-2017-16090","aliases":["EUVD-2020-0961","GHSA-c3hr-wwh3-qm54"],"status":"published","title":"Directory Traversal in fsk-server","description":"fsk-server is a simple http server. fsk-server is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing \"../\" in the url.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01974,"percentile":0.80581,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2018-06-07T02:00:00Z","modified":"2026-06-17T01:08:46Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"fsk-server","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.0.0"}]}]},{"source":"osv","ecosystem":"npm","package":"fsk-server","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0"}]}]}],"products":[{"vendor":"fsk-server_project","product":"fsk-server"},{"vendor":"hackerone","product":"fsk-server node module"}],"references":[{"url":"https://github.com/JacksonGL/NPM-Vuln-PoC/tree/master/directory-traversal/fsk-server","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://nodesecurity.io/advisories/345","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.npmjs.com/advisories/345","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-16090","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c3hr-wwh3-qm54"}],"sources":{"cve":[{"id":"CVE-2017-16090","description":"fsk-server is a simple http server. fsk-server is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing \"../\" in the url.","status":"published","published":"2018-06-07T02:00:00Z","modified":"2024-09-16T20:42:07.064Z","cwes":["CWE-22"],"updated_at":"2026-11-02T14:33:21.142987Z"}],"euvd":[{"id":"EUVD-2020-0961","description":"fsk-server is a simple http server. fsk-server is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing \"../\" in the url.","status":"published","published":"2018-06-07T02:00:00Z","modified":"2024-09-16T20:42:07Z","updated_at":"2026-11-03T00:55:11.71058Z"}],"ghsa":[{"id":"GHSA-c3hr-wwh3-qm54","title":"Directory Traversal in fsk-server","description":"Affected versions of `fsk-server` resolve relative file paths, resulting in a directory traversal vulnerability. A malicious actor can use this vulnerability to access files outside of the intended directory root, which may result in the disclosure of private files on the vulnerable system.\n\n**Example request:**\n```http\nGET /../../../../../../../../../../etc/passwd HTTP/1.1\nhost:foo\n```\n\n\n## Recommendation\n\nNo patch is available for this vulnerability.\n\nIt is recommended that the package is only used for local development, and if the functionality is needed for production, a different package is used instead.","status":"published","published":"2020-09-01T16:47:09Z","modified":"2023-09-07T00:09:48Z","cwes":["CWE-22"],"updated_at":"2026-11-02T14:37:02.632342Z"}],"nvd":[{"id":"CVE-2017-16090","description":"fsk-server is a simple http server. fsk-server is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing \"../\" in the url.","status":"published","published":"2018-06-07T02:29:01.737Z","modified":"2026-06-17T01:08:46.783Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:04:17.638656Z"}],"osv":[{"id":"GHSA-c3hr-wwh3-qm54","title":"Directory Traversal in fsk-server","description":"Affected versions of `fsk-server` resolve relative file paths, resulting in a directory traversal vulnerability. A malicious actor can use this vulnerability to access files outside of the intended directory root, which may result in the disclosure of private files on the vulnerable system.\n\n**Example request:**\n```http\nGET /../../../../../../../../../../etc/passwd HTTP/1.1\nhost:foo\n```\n\n\n## Recommendation\n\nNo patch is available for this vulnerability.\n\nIt is recommended that the package is only used for local development, and if the functionality is needed for production, a different package is used instead.","status":"published","published":"2020-09-01T16:47:09Z","modified":"2023-11-08T03:59:04.242489Z","cwes":["CWE-22"],"updated_at":"2026-11-02T15:46:44.571161Z"}]}}