{"id":"CVE-2021-39274","aliases":["EUVD-2021-25636","GHSA-77g9-3552-f5x8"],"status":"published","title":"In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during...","description":"In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-10","score":0.03123,"percentile":0.87953,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-276"],"published":"2021-08-19T11:59:08Z","modified":"2026-10-20T10:53:53Z","products":[{"vendor":"xerosecurity","product":"sn1per"}],"references":[{"url":"https://github.com/1N3/Sn1per/releases","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"https://github.com/nikip72/CVE-2021-39273-CVE-2021-39274","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/1N3/Sn1per/issues/357","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39274"},{"url":"https://github.com/advisories/GHSA-77g9-3552-f5x8"}],"sources":{"cve":[{"id":"CVE-2021-39274","description":"In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.","status":"published","published":"2021-08-19T11:59:08Z","modified":"2024-08-04T02:06:41.598Z","updated_at":"2026-11-02T14:33:09.540052Z"}],"euvd":[{"id":"EUVD-2021-25636","description":"In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.","status":"published","published":"2021-08-19T11:59:08Z","modified":"2024-08-04T02:06:41Z","updated_at":"2026-11-03T03:24:23.719378Z"}],"ghsa":[{"id":"GHSA-77g9-3552-f5x8","title":"In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during...","description":"In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.","status":"published","published":"2022-05-24T19:11:41Z","modified":"2023-01-30T05:01:38Z","cwes":["CWE-276"],"updated_at":"2026-11-02T14:46:27.385606Z"}],"nvd":[{"id":"CVE-2021-39274","description":"In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.","status":"published","published":"2021-08-19T12:15:09.487Z","modified":"2026-06-17T04:03:27.19Z","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","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:06:57.318236Z"}],"osv":[{"id":"CVE-2021-39274","description":"In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.","status":"published","published":"2021-08-19T12:15:09.487Z","modified":"2026-10-20T10:53:53.482635342Z","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":"2026-11-02T15:44:20.843843Z"}]}}