{"id":4575,"date":"2026-09-04T18:46:36","date_gmt":"2026-09-04T10:46:36","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-70554"},"modified":"2026-09-04T18:46:36","modified_gmt":"2026-09-04T10:46:36","slug":"cve-2026-70554","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-70554","title":{"rendered":"CVE-2026-70554 [CRITICAL] &#8211; MaxSite CMS contains a PHP object injection vulnerability that allows unauthenticated atta"},"content":{"rendered":"<p>MaxSite CMS contains a PHP object injection vulnerability that allows unauthenticated attackers to execute arbitrary code by passing attacker-controlled serialized data in the maxsite_comuser cookie directly to unserialize() without validation or class allowlisting. Attackers can craft a malicious serialized PHP object payload delivered in a single HTTP request to trigger magic methods during object graph reconstruction, enabling property-oriented programming attacks or remote code execution via available gadget chains such as those targeting SoapClient or Imagick extensions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MaxSite CMS contains a PHP object injection vulnerability that allows unauthenticated attackers to execute arbitrary code by passing attacker-controlled serialized data in the maxsite_comuser cookie d<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-4575","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/4575","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=4575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}