{"id":"CVE-2021-26639","aliases":["EUVD-2021-13433","GHSA-6fq5-356h-9jrc"],"status":"published","title":"WISA Smart Wing CMS File Download Vulnerability","description":"This vulnerability is caused by the lack of validation of input values for specific functions if WISA Smart Wing CMS. Remote attackers can use this vulnerability to leak all files in the server without logging in system.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00477,"percentile":0.41678,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-494"],"published":"2022-08-17T20:21:29Z","modified":"2026-06-17T03:43:36Z","products":[{"vendor":"wisa","product":"smart_wing_cms"},{"vendor":"wisa corp.","product":"smart wing cms"}],"references":[{"url":"https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66875","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26639"},{"url":"https://github.com/advisories/GHSA-6fq5-356h-9jrc"}],"sources":{"cve":[{"id":"CVE-2021-26639","title":"WISA Smart Wing CMS File Download Vulnerability","description":"This vulnerability is caused by the lack of validation of input values for specific functions if WISA Smart Wing CMS. Remote attackers can use this vulnerability to leak all files in the server without logging in system.","status":"published","published":"2022-08-17T20:21:29Z","modified":"2024-08-03T20:26:25.568Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-494","CWE-20"],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13433","description":"This vulnerability is caused by the lack of validation of input values for specific functions if WISA Smart Wing CMS. Remote attackers can use this vulnerability to leak all files in the server without logging in system.","status":"published","published":"2022-08-17T20:21:29Z","modified":"2024-08-03T20:26:25Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T03:24:51.40664Z"}],"ghsa":[{"id":"GHSA-6fq5-356h-9jrc","title":"This vulnerability is caused by the lack of validation of input values for specific functions if...","description":"This vulnerability is caused by the lack of validation of input values for specific functions if WISA Smart Wing CMS. Remote attackers can use this vulnerability to leak all files in the server without logging in system.","status":"published","published":"2022-08-18T00:00:16Z","modified":"2023-01-29T05:03:57Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:45:26.555782Z"}],"nvd":[{"id":"CVE-2021-26639","description":"This vulnerability is caused by the lack of validation of input values for specific functions if WISA Smart Wing CMS. Remote attackers can use this vulnerability to leak all files in the server without logging in system.","status":"published","published":"2022-08-17T21:15:08.487Z","modified":"2026-06-17T03:43:36.667Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-20","CWE-494"],"updated_at":"2026-11-02T14:07:06.906968Z"}]}}