{"id":"CVE-2021-36582","aliases":["EUVD-2021-23179","GHSA-3prf-q3vf-746c"],"status":"published","title":"In Kooboo CMS 2.1.1.0, it is possible to upload a remote shell (e.g., aspx) to the server and...","description":"In Kooboo CMS 2.1.1.0, it is possible to upload a remote shell (e.g., aspx) to the server and then call upon it to receive a reverse shell from the victim server. The files are uploaded to /Content/Template/root/reverse-shell.aspx and can be simply triggered by browsing that URL.","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":0.01483,"percentile":0.74304,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2021-09-14T11:38:58Z","modified":"2026-07-09T01:16:57Z","products":[{"vendor":"kooboo","product":"kooboo_cms"}],"references":[{"url":"https://github.com/l00neyhacker/CVE-2021-36582","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-36582"},{"url":"http://kooboo.com"},{"url":"https://github.com/advisories/GHSA-3prf-q3vf-746c"}],"sources":{"cve":[{"id":"CVE-2021-36582","description":"In Kooboo CMS 2.1.1.0, it is possible to upload a remote shell (e.g., aspx) to the server and then call upon it to receive a reverse shell from the victim server. The files are uploaded to /Content/Template/root/reverse-shell.aspx and can be simply triggered by browsing that URL.","status":"published","published":"2021-09-14T11:38:58Z","modified":"2026-07-09T00:14:13.364Z","updated_at":"2026-11-02T14:33:06.32268Z"}],"euvd":[{"id":"EUVD-2021-23179","description":"In Kooboo CMS 2.1.1.0, it is possible to upload a remote shell (e.g., aspx) to the server and then call upon it to receive a reverse shell from the victim server. The files are uploaded to /Content/Template/root/reverse-shell.aspx and can be simply triggered by browsing that URL.","status":"published","published":"2021-09-14T11:38:58Z","modified":"2026-07-09T00:14:13Z","updated_at":"2026-11-02T18:20:09.112703Z"}],"ghsa":[{"id":"GHSA-3prf-q3vf-746c","title":"In Kooboo CMS 2.1.1.0, it is possible to upload a remote shell (e.g., aspx) to the server and...","description":"In Kooboo CMS 2.1.1.0, it is possible to upload a remote shell (e.g., aspx) to the server and then call upon it to receive a reverse shell from the victim server. The files are uploaded to /Content/Template/root/reverse-shell.aspx and can be simply triggered by browsing that URL.","status":"published","published":"2022-05-24T19:14:28Z","modified":"2026-07-05T00:31:23Z","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-434"],"updated_at":"2026-11-02T15:09:14.376377Z"}],"nvd":[{"id":"CVE-2021-36582","description":"In Kooboo CMS 2.1.1.0, it is possible to upload a remote shell (e.g., aspx) to the server and then call upon it to receive a reverse shell from the victim server. The files are uploaded to /Content/Template/root/reverse-shell.aspx and can be simply triggered by browsing that URL.","status":"published","published":"2021-09-14T12:15:09.953Z","modified":"2026-07-09T01:16:57.78Z","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":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:06:58.502206Z"}]}}