{"id":13458,"date":"2026-09-04T19:00:45","date_gmt":"2026-09-04T11:00:45","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-56765"},"modified":"2026-09-04T19:00:45","modified_gmt":"2026-09-04T11:00:45","slug":"cve-2026-56765","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-56765","title":{"rendered":"CVE-2026-56765 [CRITICAL] &#8211; Vikunja before 2.2.1 contains an authorization flaw where the LinkSharing.ReadAll endpoint"},"content":{"rendered":"<p>Vikunja before 2.2.1 contains an authorization flaw where the LinkSharing.ReadAll endpoint exposes share hashes to users with read access, enabling permission escalation to admin-level shares. The GetTaskAttachment endpoint performs permission checks against user-supplied task IDs but fetches attachments by sequential ID without verifying ownership, allowing attackers to download and delete all file attachments across all projects instance-wide.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vikunja before 2.2.1 contains an authorization flaw where the LinkSharing.ReadAll endpoint exposes share hashes to users with read access, enabling permission escalation to admin-level shares. The Get<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-13458","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/13458","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=13458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}