{"id":"CVE-2021-28977","details":"Cross Site Scripting vulnerability in GetSimpleCMS 3.3.16 in admin/upload.php by adding comments or jpg and other file header information to the content of xla, pages, and gzip files,","modified":"2026-07-08T23:57:34.073081Z","published":"2021-06-23T13:15:08.180Z","references":[{"type":"ADVISORY","url":"https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1336"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/getsimplecms/getsimplecms","events":[{"introduced":"0"},{"last_affected":"a26202bee203910780f5a96b3bc1f52a8f23d0a1"}],"database_specific":{"cpe":"cpe:2.3:a:get-simple:getsimplecms:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"3.3.15"}],"source":"CPE_RANGE"}}],"versions":["3.3.15","v3.3.14","v3.3.14b2","v3.3.14b1","3.3.12","v3.3.5","v3.2.2","v3.2.1","v3.1.2","v3.1.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28977.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"}]}