{"id":"CVE-2017-7881","details":"BigTree CMS through 4.2.17 relies on a substring check for CSRF protection, which allows remote attackers to bypass this check by placing the required admin/developer/ URI within a query string in an HTTP Referer header. This was found in core/admin/modules/developer/_header.php and patched in core/inc/bigtree/admin.php on 2017-04-14.","modified":"2026-04-10T04:02:08.784019Z","published":"2017-04-15T16:59:00.347Z","references":[{"type":"FIX","url":"https://github.com/bigtreecms/BigTree-CMS/commit/7761481ac40d83ac29fef42bc6b3c07c86694b56"},{"type":"EVIDENCE","url":"https://www.cdxy.me/?p=765"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bigtreecms/bigtree-cms","events":[{"introduced":"0"},{"last_affected":"107cca68ee61163ab19bd9e79eca7948b861c727"},{"fixed":"7761481ac40d83ac29fef42bc6b3c07c86694b56"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"4.2.17"}]}}],"versions":["4.0beta2","4.2","4.2.10","4.2.11","4.2.12","4.2.13","4.2.14","4.2.15","4.2.16","4.2.17","4.2.8","4.2.9","v4.0b1","v4.0b3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-7881.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}