{"id":22936,"date":"2026-09-15T20:31:06","date_gmt":"2026-09-15T12:31:06","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-91857"},"modified":"2026-09-15T20:31:06","modified_gmt":"2026-09-15T12:31:06","slug":"cve-2026-91857","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-91857","title":{"rendered":"CVE-2026-91857 &#8211; Affected versions of MISP expose several state-changing controller actions without restric"},"content":{"rendered":"<p>Affected versions of MISP expose several state-changing controller actions without restricting them to POST.<\/p>\n<p>The affected actions are:<\/p>\n<p>\u2003-\u00a0EventReportsController::purgeUnusedPictures()<\/p>\n<p>\u2003-\u00a0NoticelistsController::enableNoticelist()<\/p>\n<p>\u2003-\u00a0ServersController::removeOrphanedCorrelations()<\/p>\n<p>\u2003- WorkflowsController::rebuildRedis()<\/p>\n<p>The patch adds allowMethod([&#8216;post&#8217;]) to each action, preventing them from being triggered through ordinary GET requests.<\/p>\n<p>For purgeUnusedPictures(), the corresponding UI previously used $.get(). The fix converts that request to POST and supplies X-CSRF-Token, while the controller enables header-only CSRF validation for that AJAX action.<\/p>\n<p>Because GET requests can be induced cross-origin through links, images, redirects, or navigation, accepting GET for these state-changing operations can let an attacker trigger them using the authenticated victim&#8217;s session.<\/p>\n<p>Version affected: \u22642.5.45<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Affected versions of MISP expose several state-changing controller actions without restricting them to POST.<\/p>\n<p>The affected actions are:<\/p>\n<p>\u2003-\u00a0EventReportsController::purgeUnusedPictures()<\/p>\n<p>\u2003-\u00a0Noticel<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-22936","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/22936","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=22936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}