{"id":11022,"date":"2026-09-04T18:51:37","date_gmt":"2026-09-04T10:51:37","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-46355"},"modified":"2026-09-04T18:51:37","modified_gmt":"2026-09-04T10:51:37","slug":"cve-2026-46355","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-46355","title":{"rendered":"CVE-2026-46355 [HIGH] &#8211; BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton exposed"},"content":{"rendered":"<p>BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton exposed \/bigbluebutton\/api\/handleJoinExistingUser through bigbluebutton-web\/grails-app\/controllers\/org\/bigbluebutton\/web\/controllers\/ApiController.groovy. A requester able to supply an existingUserID for an active participant could reuse that participant&#8217;s session and impersonate the participant in the same meeting because handleJoinExistingUser was a routable controller action rather than a private helper. This issue is fixed in version 3.0.23.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton exposed \/bigbluebutton\/api\/handleJoinExistingUser through bigbluebutton-web\/grails-app\/controllers\/org\/bigbluebutton\/w<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-11022","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/11022","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=11022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}