{"id":21356,"date":"2026-09-12T04:31:04","date_gmt":"2026-09-11T20:31:04","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-81916"},"modified":"2026-09-12T04:31:04","modified_gmt":"2026-09-11T20:31:04","slug":"cve-2026-81916","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-81916","title":{"rendered":"CVE-2026-81916 &#8211; Concrete CMS before 9.5.3 evaluated the authorization check for an Express entry submissio"},"content":{"rendered":"<p>Concrete CMS before 9.5.3 evaluated the authorization check for an Express entry submission against the entity of the posted form rather than the entity identified by the dashboard route. As a result, a user permitted to add entries to one Express object could create entries in a different Express object outside their authorization scope, potentially polluting protected datasets, triggering workflows, or injecting content into administrative processes. The dashboard submit route resolved the mutated entity from the attacker-controlled route ID while the permission check validated the independently posted form&#8217;s entity, and the submission proceeded because the two entities were never compared.\u00a0The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 5.1 with vector CVSS:4.0\/AV:N\/AC:L\/AT:N\/PR:H\/UI:N\/VC:N\/VI:L\/VA:N\/SC:N\/SI:N\/SA:N. Thanks Yonatan Drori from Tenzai\u00a0for reporting.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Concrete CMS before 9.5.3 evaluated the authorization check for an Express entry submission against the entity of the posted form rather than the entity identified by the dashboard route. As a result,<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21356","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21356","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=21356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}