{"id":"CVE-2019-11401","aliases":["EUVD-2022-3756","GHSA-ff4w-8chr-w2x9"],"status":"published","title":"SiteServer CMS RCE via unsafe file upload","description":"A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the \"as\" substring is deleted.","severity":{"version":"3.0","score":7.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.0282,"percentile":0.86683,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-434"],"published":"2019-04-21T15:37:38Z","modified":"2026-10-20T10:50:39Z","fixes":[{"ecosystem":"NuGet","package":"sscms","fixed_in":["6.12"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"NuGet","package":"sscms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12"}]}]},{"source":"osv","ecosystem":"NuGet","package":"sscms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12"}]}],"versions":["1.0.0-preview4"]}],"products":[{"vendor":"siteserver","product":"siteserver_cms"}],"references":[{"url":"https://github.com/siteserver/cms/issues/1858","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-11401","tags":["advisory"]},{"url":"https://github.com/siteserver/cms/commit/a7edb9ce3f9b52be3d18fa8a0e44931264e22436#diff-c8a06aaffb97eb2f4c587c1786906edd49dea574d063f74a59d9653ee0d5718b","tags":["web"]},{"url":"https://github.com/advisories/GHSA-ff4w-8chr-w2x9"},{"url":"https://github.com/siteserver/cms","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2019-11401","description":"A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the \"as\" substring is deleted.","status":"published","published":"2019-04-21T15:37:38Z","modified":"2024-08-04T22:55:39.68Z","updated_at":"2026-11-02T14:32:22.432545Z"}],"euvd":[{"id":"EUVD-2022-3756","description":"A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the \"as\" substring is deleted.","status":"published","published":"2019-04-21T15:37:38Z","modified":"2024-08-04T22:55:39Z","updated_at":"2026-11-03T02:40:49.362838Z"}],"ghsa":[{"id":"GHSA-ff4w-8chr-w2x9","title":"SiteServer CMS RCE via unsafe file upload","description":"A issue was discovered in SiteServer CMS prior to version 6.12. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension `.aassp`, which is converted to `.asp` because the \"as\" substring is deleted.","status":"published","published":"2022-05-24T16:44:03Z","modified":"2023-08-25T21:15:55Z","cvss":[{"version":"3.0","score":7.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:37:00.680009Z"}],"nvd":[{"id":"CVE-2019-11401","description":"A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the \"as\" substring is deleted.","status":"published","published":"2019-04-22T11:29:04.313Z","modified":"2026-06-17T02:12:51.25Z","cvss":[{"version":"3.0","score":7.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/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-434"],"updated_at":"2026-11-02T14:05:11.426883Z"}],"osv":[{"id":"CVE-2019-11401","description":"A issue was discovered in SiteServer CMS 6.9.0. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the \"as\" substring is deleted.","status":"published","published":"2019-04-22T11:29:04.313Z","modified":"2026-10-20T10:50:39.90767594Z","cvss":[{"version":"3.0","score":7.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:10.383287Z"},{"id":"GHSA-ff4w-8chr-w2x9","title":"SiteServer CMS RCE via unsafe file upload","description":"A issue was discovered in SiteServer CMS prior to version 6.12. It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension `.aassp`, which is converted to `.asp` because the \"as\" substring is deleted.","status":"published","published":"2022-05-24T16:44:03Z","modified":"2024-02-16T07:58:24.434044Z","cvss":[{"version":"3.0","score":7.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:46:46.39441Z"}]}}