{"id":"CVE-2021-44093","aliases":["EUVD-2021-30951","GHSA-4cp2-cr6x-cj92"],"status":"published","title":"A Remote Command Execution vulnerability on the background in zrlog 2.2.2, at the upload avatar...","description":"A Remote Command Execution vulnerability on the background in zrlog 2.2.2, at the upload avatar function, could bypass the original limit, upload the JSP file to get a WebShell","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":"2026-11-11","score":0.02595,"percentile":0.85522,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2021-11-28T20:27:43Z","modified":"2026-06-17T04:11:53Z","products":[{"vendor":"zrlog","product":"zrlog"}],"references":[{"url":"https://github.com/94fzb/zrlog/issues/115","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44093"},{"url":"https://github.com/advisories/GHSA-4cp2-cr6x-cj92"}],"sources":{"cve":[{"id":"CVE-2021-44093","description":"A Remote Command Execution vulnerability on the background in zrlog 2.2.2, at the upload avatar function, could bypass the original limit, upload the JSP file to get a WebShell","status":"published","published":"2021-11-28T20:27:43Z","modified":"2024-08-04T04:10:17.348Z","updated_at":"2026-11-02T14:33:01.166399Z"}],"euvd":[{"id":"EUVD-2021-30951","description":"A Remote Command Execution vulnerability on the background in zrlog 2.2.2, at the upload avatar function, could bypass the original limit, upload the JSP file to get a WebShell","status":"published","published":"2021-11-28T20:27:43Z","modified":"2024-08-04T04:10:17Z","updated_at":"2026-11-03T03:24:12.599691Z"}],"ghsa":[{"id":"GHSA-4cp2-cr6x-cj92","title":"A Remote Command Execution vulnerability on the background in zrlog 2.2.2, at the upload avatar...","description":"A Remote Command Execution vulnerability on the background in zrlog 2.2.2, at the upload avatar function, could bypass the original limit, upload the JSP file to get a WebShell","status":"published","published":"2022-05-24T19:21:19Z","modified":"2023-01-30T05:03:51Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:46:55.198962Z"}],"nvd":[{"id":"CVE-2021-44093","description":"A Remote Command Execution vulnerability on the background in zrlog 2.2.2, at the upload avatar function, could bypass the original limit, upload the JSP file to get a WebShell","status":"published","published":"2021-11-28T21:15:08.14Z","modified":"2026-06-17T04:11:53.797Z","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":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:07:01.428028Z"}]}}