{"id":"CVE-2021-45268","details":"A Cross Site Request Forgery (CSRF) vulnerability exists in Backdrop CMS 1.20, which allows Remote Attackers to gain Remote Code Execution (RCE) on the Hosting Webserver via uploading a maliciously add-on with crafted PHP file. NOTE: the vendor disputes this because the attack requires a session cookie of a high-privileged authenticated user who is entitled to install arbitrary add-ons","modified":"2026-07-09T05:45:39.572699Z","published":"2022-02-03T22:15:08.633Z","references":[{"type":"ADVISORY","url":"https://www.exploit-db.com/exploits/50323"},{"type":"EVIDENCE","url":"https://github.com/V1n1v131r4/CSRF-to-RCE-on-Backdrop-CMS"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/backdrop/backdrop","events":[{"introduced":"6fd280f1047bea33236105780bb48ece54388022"},{"last_affected":"6fd280f1047bea33236105780bb48ece54388022"}],"database_specific":{"source":"CPE_STRING","cpe":"cpe:2.3:a:backdropcms:backdrop:1.20.0:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.20.0"},{"last_affected":"1.20.0"}]}}],"versions":["1.20.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45268.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}