{"id":23432,"date":"2026-09-16T04:31:34","date_gmt":"2026-09-15T20:31:34","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-68530"},"modified":"2026-09-16T04:31:34","modified_gmt":"2026-09-15T20:31:34","slug":"cve-2026-68530","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-68530","title":{"rendered":"CVE-2026-68530 &#8211; Concrete CMS 9 through 9.5.2 did not perform an authorization check on several board-insta"},"content":{"rendered":"<p>Concrete CMS 9 through 9.5.2 did not perform an authorization check on several board-instance actions in the Boards area of the Dashboard. The instance details single-page controller resolved a board instance directly from an attacker-supplied instance ID and then viewed, refreshed, regenerated, or deleted it without verifying that the requester held edit_board_settings on the instance&#8217;s parent board. As a result, a user granted board-edit rights on a single board could reach the instances of any other board on the site by supplying their instance IDs. The affected actions bypassed the controller&#8217;s permission-checked accessor (the same accessor used by the read view, which runs canEditBoardSettings on the parent board) and validated only an action-scoped CSRF token, which is bound to the action name rather than to the target object and is therefore reusable across boards.\u00a0The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 2.1 with vector CVSS:4.0\/AV:N\/AC:L\/AT:P\/PR:H\/UI:N\/VC:N\/VI:L\/VA:L\/SC:N\/SI:N\/SA:N. Thanks Winston Crooker for reporting.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Concrete CMS 9 through 9.5.2 did not perform an authorization check on several board-instance actions in the Boards area of the Dashboard. The instance details single-page controller resolved a board <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-23432","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/23432","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=23432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=23432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=23432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}