{"id":"CVE-2020-11707","aliases":["EUVD-2020-4049","GHSA-m375-vhrx-7rhv"],"status":"published","title":"An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce...","description":"An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce permission over Windows Symlinks or Junctions. As a result, a low-privileged user (non-admin) can craft a Junction Link in a directory he has full control of, breaking out of the sandbox.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01003,"percentile":0.63411,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-863"],"published":"2020-04-12T02:42:41Z","modified":"2026-06-17T02:50:39Z","products":[{"vendor":"provideserver","product":"provide_ftp_server"}],"references":[{"url":"https://www.provideserver.com/security/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://github.com/belong2yourself/vulnerabilities/tree/master/ProVide/Sandbox%20Escape%20via%20Symlink%20or%20Junction","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11707"},{"url":"https://www.provideserver.com/security"},{"url":"https://github.com/advisories/GHSA-m375-vhrx-7rhv"}],"sources":{"cve":[{"id":"CVE-2020-11707","description":"An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce permission over Windows Symlinks or Junctions. As a result, a low-privileged user (non-admin) can craft a Junction Link in a directory he has full control of, breaking out of the sandbox.","status":"published","published":"2020-04-12T02:42:41Z","modified":"2024-08-04T11:35:13.711Z","updated_at":"2026-11-02T14:35:57.352161Z"}],"euvd":[{"id":"EUVD-2020-4049","description":"An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce permission over Windows Symlinks or Junctions. As a result, a low-privileged user (non-admin) can craft a Junction Link in a directory he has full control of, breaking out of the sandbox.","status":"published","published":"2020-04-12T02:42:41Z","modified":"2024-08-04T11:35:13Z","updated_at":"2026-11-03T03:07:42.412087Z"}],"ghsa":[{"id":"GHSA-m375-vhrx-7rhv","title":"An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce...","description":"An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce permission over Windows Symlinks or Junctions. As a result, a low-privileged user (non-admin) can craft a Junction Link in a directory he has full control of, breaking out of the sandbox.","status":"published","published":"2022-05-24T17:14:02Z","modified":"2024-04-04T02:49:48Z","cvss":[{"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"}],"cwes":["CWE-20","CWE-863"],"updated_at":"2026-11-02T14:56:12.154453Z"}],"nvd":[{"id":"CVE-2020-11707","description":"An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce permission over Windows Symlinks or Junctions. As a result, a low-privileged user (non-admin) can craft a Junction Link in a directory he has full control of, breaking out of the sandbox.","status":"published","published":"2020-04-12T03:15:11.117Z","modified":"2026-06-17T02:50:39.323Z","cvss":[{"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-863"],"updated_at":"2026-11-02T14:05:57.678762Z"}]}}