{"id":"CVE-2021-36582","title":"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","summary":"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 ca…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-434"],"vendor":"kooboo","product":"kooboo_cms","affected":["kooboo_cms = 2.1.1.0"],"published":"2021-09-14","updated":"2026-07-05","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-36582","references":[{"url":"https://github.com/l00neyhacker/CVE-2021-36582","label":"cve@mitre.org"},{"url":"http://kooboo.com","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/l00neyhacker/CVE-2021-36582","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.01483,"epssPercentile":0.7286,"ingestedAt":"2026-07-06T17:03:23.568Z","slug":"CVE-2021-36582","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `kooboo_cms = 2.1.1.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}