{"id":"CVE-2021-42839","aliases":["EUVD-2021-29794","GHSA-mhvw-gjfc-ccqf"],"status":"published","title":"Grand Vice info Co. webopac7 - Arbitrary File Upload","description":"Grand Vice info Co. webopac7 file upload function fails to filter special characters. While logging in with general user’s permission, remote attackers can upload malicious script and execute arbitrary code to control the system or interrupt services.","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":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.02427,"percentile":0.8436,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2021-11-15T09:30:20Z","modified":"2026-06-17T04:10:11Z","products":[{"vendor":"grand vice info","product":"webopac7"},{"vendor":"grand vice info co.","product":"webopac7"},{"vendor":"vice","product":"webopac"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-5288-9d546-1.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42839"},{"url":"https://github.com/advisories/GHSA-mhvw-gjfc-ccqf"}],"sources":{"cve":[{"id":"CVE-2021-42839","title":"Grand Vice info Co. webopac7 - Arbitrary File Upload","description":"Grand Vice info Co. webopac7 file upload function fails to filter special characters. While logging in with general user’s permission, remote attackers can upload malicious script and execute arbitrary code to control the system or interrupt services.","status":"published","published":"2021-11-15T09:30:20.399Z","modified":"2024-09-17T04:09:15.578Z","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":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:32:58.359368Z"}],"euvd":[{"id":"EUVD-2021-29794","description":"Grand Vice info Co. webopac7 file upload function fails to filter special characters. While logging in with general user’s permission, remote attackers can upload malicious script and execute arbitrary code to control the system or interrupt services.","status":"published","published":"2021-11-15T09:30:20Z","modified":"2024-09-17T04:09:15Z","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"}],"updated_at":"2026-11-03T00:28:25.709658Z"}],"ghsa":[{"id":"GHSA-mhvw-gjfc-ccqf","title":"Grand Vice info Co. webopac7 file upload function fails to filter special characters. While...","description":"Grand Vice info Co. webopac7 file upload function fails to filter special characters. While logging in with general user’s permission, remote attackers can upload malicious script and execute arbitrary code to control the system or interrupt services.","status":"published","published":"2022-05-24T22:28:47Z","modified":"2023-01-30T05:05:54Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:47:22.953418Z"}],"nvd":[{"id":"CVE-2021-42839","description":"Grand Vice info Co. webopac7 file upload function fails to filter special characters. While logging in with general user’s permission, remote attackers can upload malicious script and execute arbitrary code to control the system or interrupt services.","status":"published","published":"2021-11-15T10:15:07.92Z","modified":"2026-06-17T04:10:11.44Z","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":"secondary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:07:00.984108Z"}]}}