{"id":28581,"date":"2026-09-25T04:31:25","date_gmt":"2026-09-24T20:31:25","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-91123"},"modified":"2026-09-25T04:31:25","modified_gmt":"2026-09-24T20:31:25","slug":"cve-2026-91123","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-91123","title":{"rendered":"CVE-2026-91123 [HIGH] &#8211; Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, an"},"content":{"rendered":"<p>Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, the iframe src traversal guard did not treat literal backslashes as path separators after decoded dot segments. A crafted source could therefore pass an allowed_iframes subpath check while browser URL normalization moved the iframe outside the intended allowed path. The resulting iframe could load content from a location that the administrator did not allow. This issue is fixed in versions 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, the iframe src traversal guard did not treat literal backslashes as path separators after decoded <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28581","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28581","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=28581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}