{"id":14643,"date":"2026-09-04T19:02:06","date_gmt":"2026-09-04T11:02:06","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-46353"},"modified":"2026-09-04T19:02:06","modified_gmt":"2026-09-04T11:02:06","slug":"cve-2026-46353","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-46353","title":{"rendered":"CVE-2026-46353 [HIGH] &#8211; BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web checksum valid"},"content":{"rendered":"<p>BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web checksum validation could be bypassed when a presentationUploadExternalUrl parameter was supplied to API request handling in CreateMeeting.java and ValidationService.java, allowing a user to send valid requests to some endpoints without a checksum. This issue is fixed in version 3.0.21.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web checksum validation could be bypassed when a presentationUploadExternalUrl parameter was supplied to API request handling in<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14643","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14643","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=14643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14643"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}