{"id":22646,"date":"2026-09-15T08:31:00","date_gmt":"2026-09-15T00:31:00","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-81902"},"modified":"2026-09-15T08:31:00","modified_gmt":"2026-09-15T00:31:00","slug":"cve-2026-81902","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-81902","title":{"rendered":"CVE-2026-81902 &#8211; Concrete CMS 9 through 9.5.2 did not validate a CSRF token in the orphaned block removal p"},"content":{"rendered":"<p>Concrete CMS 9 through 9.5.2 did not validate a CSRF token in the orphaned block removal panel action (removeOrphanedBlocks). A remote attacker could craft a request that, when loaded by an authenticated user holding edit permission on the target page, deleted every block on that page&#8217;s current version; blocks not aliased to another page or scrapbook entry were also removed from the global Blocks table and their block-type data table, permanently destroying the content.\u00a0The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 7.1 with vector CVSS:4.0\/AV:N\/AC:L\/AT:N\/PR:N\/UI:P\/VC:N\/VI:H\/VA:N\/SC:N\/SI:N\/SA:N. Thanks Yonatan Drori from Tenzai for reporting.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Concrete CMS 9 through 9.5.2 did not validate a CSRF token in the orphaned block removal panel action (removeOrphanedBlocks). A remote attacker could craft a request that, when loaded by an authentica<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-22646","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/22646","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=22646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}