{"id":"CVE-2021-43430","aliases":["EUVD-2021-30363","GHSA-xw8x-6f24-54jx"],"status":"published","title":"An Access Control vulnerability exists in BigAntSoft BigAnt office messenger 5.6 via im_webserver...","description":"An Access Control vulnerability exists in BigAntSoft BigAnt office messenger 5.6 via im_webserver, which could let a malicious user upload PHP Trojan files.","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":0.01145,"percentile":0.67207,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2022-04-07T17:40:09Z","modified":"2026-06-17T04:10:57Z","products":[{"vendor":"bigantsoft","product":"bigant_office_messenger_5"}],"references":[{"url":"https://github.com/Flash1201/bug/blob/main/bigant","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43430"},{"url":"https://github.com/advisories/GHSA-xw8x-6f24-54jx"}],"sources":{"cve":[{"id":"CVE-2021-43430","description":"An Access Control vulnerability exists in BigAntSoft BigAnt office messenger 5.6 via im_webserver, which could let a malicious user upload PHP Trojan files.","status":"published","published":"2022-04-07T17:40:09Z","modified":"2024-08-04T03:55:28.847Z","updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-30363","description":"An Access Control vulnerability exists in BigAntSoft BigAnt office messenger 5.6 via im_webserver, which could let a malicious user upload PHP Trojan files.","status":"published","published":"2022-04-07T17:40:09Z","modified":"2024-08-04T03:55:28Z","updated_at":"2026-11-03T03:24:14.245608Z"}],"ghsa":[{"id":"GHSA-xw8x-6f24-54jx","title":"An Access Control vulnerability exists in BigAntSoft BigAnt office messenger 5.6 via im_webserver...","description":"An Access Control vulnerability exists in BigAntSoft BigAnt office messenger 5.6 via im_webserver, which could let a malicious user upload PHP Trojan files.","status":"published","published":"2022-04-08T00:00:22Z","modified":"2023-01-27T05:01:22Z","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-434"],"updated_at":"2026-11-02T14:41:52.644766Z"}],"nvd":[{"id":"CVE-2021-43430","description":"An Access Control vulnerability exists in BigAntSoft BigAnt office messenger 5.6 via im_webserver, which could let a malicious user upload PHP Trojan files.","status":"published","published":"2022-04-07T18:15:08.237Z","modified":"2026-06-17T04:10:57.33Z","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-434"],"updated_at":"2026-11-02T14:07:05.581807Z"}]}}