{"id":"CVE-2022-25839","aliases":["EUVD-2022-1531","GHSA-rf54-44jr-q5vf","SNYK-JS-URLJS-2414030"],"status":"published","title":"Improper Input Validation","description":"The package url-js before 2.1.0 are vulnerable to Improper Input Validation due to improper parsing, which makes it is possible for the hostname to be spoofed. http://\\\\\\\\\\\\\\\\localhost and http://localhost are the same URL. However, the hostname is not parsed as localhost, and the backslash is reflected as it is.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00849,"percentile":0.58454,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2022-03-11T20:00:15Z","modified":"2026-10-28T02:31:10Z","fixes":[{"ecosystem":"npm","package":"url-js","fixed_in":["2.1.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"url-js","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0"}]}]},{"source":"osv","ecosystem":"npm","package":"url-js","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.1.0"}]}]}],"products":[{"vendor":"url-js_project","product":"url-js"}],"references":[{"url":"https://snyk.io/vuln/SNYK-JS-URLJS-2414030","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","advisory","web"]},{"url":"https://github.com/duzun/URL.js/commit/9dc9fcc99baa4cbda24403d81a589e9b0f4121d0","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-25839","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rf54-44jr-q5vf"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/25xxx/CVE-2022-25839.json","tags":["advisory"]},{"url":"https://github.com/duzun/URL.js","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-25839","title":"Improper Input Validation","description":"The package url-js before 2.1.0 are vulnerable to Improper Input Validation due to improper parsing, which makes it is possible for the hostname to be spoofed. http://\\\\\\\\\\\\\\\\localhost and http://localhost are the same URL. However, the hostname is not parsed as localhost, and the backslash is reflected as it is.","status":"published","published":"2022-03-11T20:00:15.762Z","modified":"2024-09-16T22:35:35.422Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:34:28.374916Z"}],"euvd":[{"id":"EUVD-2022-1531","description":"The package url-js before 2.1.0 are vulnerable to Improper Input Validation due to improper parsing, which makes it is possible for the hostname to be spoofed. http://\\\\\\\\\\\\\\\\localhost and http://localhost are the same URL. However, the hostname is not parsed as localhost, and the backslash is reflected as it is.","status":"published","published":"2022-03-11T20:00:15Z","modified":"2024-09-16T22:35:35Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P","level":"medium"}],"updated_at":"2026-11-03T00:55:01.59966Z"}],"ghsa":[{"id":"GHSA-rf54-44jr-q5vf","title":"Improper Input Validation in url-js","description":"The package url-js before 2.1.0 is vulnerable to Improper Input Validation due to improper parsing, which makes it is possible for the hostname to be spoofed. http://\\\\\\\\\\\\\\\\localhost and http://localhost are the same URL. However, the hostname is not parsed as localhost, and the backslash is reflected as it is.","status":"published","published":"2022-03-12T00:00:26Z","modified":"2023-01-27T05:00:38Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:36:14.825433Z"}],"nvd":[{"id":"CVE-2022-25839","description":"The package url-js before 2.1.0 are vulnerable to Improper Input Validation due to improper parsing, which makes it is possible for the hostname to be spoofed. http://\\\\\\\\\\\\\\\\localhost and http://localhost are the same URL. However, the hostname is not parsed as localhost, and the backslash is reflected as it is.","status":"published","published":"2022-03-11T20:15:09.1Z","modified":"2026-06-17T04:34:22.19Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:07:13.7085Z"}],"osv":[{"id":"CVE-2022-25839","title":"Improper Input Validation","description":"The package url-js before 2.1.0 are vulnerable to Improper Input Validation due to improper parsing, which makes it is possible for the hostname to be spoofed. http://\\\\\\\\\\\\\\\\localhost and http://localhost are the same URL. However, the hostname is not parsed as localhost, and the backslash is reflected as it is.","status":"published","published":"2022-03-11T20:00:15.762Z","modified":"2026-10-28T02:31:10.013612329Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P","level":"medium"}],"updated_at":"2026-11-02T15:44:24.758293Z"},{"id":"GHSA-rf54-44jr-q5vf","title":"Improper Input Validation in url-js","description":"The package url-js before 2.1.0 is vulnerable to Improper Input Validation due to improper parsing, which makes it is possible for the hostname to be spoofed. http://\\\\\\\\\\\\\\\\localhost and http://localhost are the same URL. However, the hostname is not parsed as localhost, and the backslash is reflected as it is.","status":"published","published":"2022-03-12T00:00:26Z","modified":"2026-07-08T06:49:35.009352772Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:46:55.877614Z"}]}}