{"id":"CVE-2021-26634","aliases":["EUVD-2021-13428","GHSA-f35m-48c3-v5mq"],"status":"published","title":"Maxboard multiple vulnerabilities","description":"SQL injection and file upload attacks are possible due to insufficient validation of input values in some parameters and variables of files compromising Maxboard, which may lead to arbitrary code execution or privilege escalation. Attackers can use these vulnerabilities to perform attacks such as stealing server management rights using a web shell.","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":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01373,"percentile":0.72335,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-288","CWE-434","CWE-89"],"published":"2022-06-01T14:59:25Z","modified":"2026-06-17T03:43:36Z","products":[{"vendor":"max yi","product":"maxboard"},{"vendor":"maxb","product":"maxboard"},{"vendor":"maxboard","product":"maxboard"}],"references":[{"url":"https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66746","tags":["x_refsource_MISC","x_transferred","Broken Link","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26634"},{"url":"https://github.com/advisories/GHSA-f35m-48c3-v5mq"}],"sources":{"cve":[{"id":"CVE-2021-26634","title":"Maxboard multiple vulnerabilities","description":"SQL injection and file upload attacks are possible due to insufficient validation of input values in some parameters and variables of files compromising Maxboard, which may lead to arbitrary code execution or privilege escalation. Attackers can use these vulnerabilities to perform attacks such as stealing server management rights using a web shell.","status":"published","published":"2022-06-01T14:59:25Z","modified":"2024-08-03T20:26:25.727Z","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":"cna"}],"cwes":["CWE-89","CWE-288","CWE-434"],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13428","description":"SQL injection and file upload attacks are possible due to insufficient validation of input values in some parameters and variables of files compromising Maxboard, which may lead to arbitrary code execution or privilege escalation. Attackers can use these vulnerabilities to perform attacks such as stealing server management rights using a web shell.","status":"published","published":"2022-06-01T14:59:25Z","modified":"2024-08-03T20:26:25Z","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":"2026-11-03T03:24:51.40664Z"}],"ghsa":[{"id":"GHSA-f35m-48c3-v5mq","title":"SQL injection and file upload attacks are possible due to insufficient validation of input values...","description":"SQL injection and file upload attacks are possible due to insufficient validation of input values in some parameters and variables of files compromising Maxboard, which may lead to arbitrary code execution or privilege escalation. Attackers can use these vulnerabilities to perform attacks such as stealing server management rights using a web shell.","status":"published","published":"2022-06-03T00:00:58Z","modified":"2023-07-04T05:01:39Z","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"}],"cwes":["CWE-20","CWE-288","CWE-434"],"updated_at":"2026-11-02T14:54:40.485503Z"}],"nvd":[{"id":"CVE-2021-26634","description":"SQL injection and file upload attacks are possible due to insufficient validation of input values in some parameters and variables of files compromising Maxboard, which may lead to arbitrary code execution or privilege escalation. Attackers can use these vulnerabilities to perform attacks such as stealing server management rights using a web shell.","status":"published","published":"2022-06-02T14:15:28.243Z","modified":"2026-06-17T03:43:36.117Z","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":"secondary"},{"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":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-89","CWE-288","CWE-434"],"updated_at":"2026-11-02T14:07:06.501652Z"}]}}