{"id":18370,"date":"2026-09-09T00:30:44","date_gmt":"2026-09-08T16:30:44","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-73321"},"modified":"2026-09-09T00:30:44","modified_gmt":"2026-09-08T16:30:44","slug":"cve-2026-73321","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-73321","title":{"rendered":"CVE-2026-73321 [MEDIUM] &#8211; XenForo before 2.3.13 contains an uncontrolled recursion vulnerability in the BBCode parse"},"content":{"rendered":"<p>XenForo before 2.3.13 contains an uncontrolled recursion vulnerability in the BBCode parser that allows authenticated attackers to cause persistent denial of service by submitting a post with deeply nested BBCode tags. Attackers can craft a single malicious post with sufficient nesting depth to exceed PHP&#8217;s stack limit, causing fatal errors that repeatedly terminate PHP-FPM workers for all visitors rendering the affected thread.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>XenForo before 2.3.13 contains an uncontrolled recursion vulnerability in the BBCode parser that allows authenticated attackers to cause persistent denial of service by submitting a post with deeply n<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-18370","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/18370","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=18370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}