{"id":17130,"date":"2026-09-05T02:30:47","date_gmt":"2026-09-04T18:30:47","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-85600"},"modified":"2026-09-05T02:30:47","modified_gmt":"2026-09-04T18:30:47","slug":"cve-2026-85600","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-85600","title":{"rendered":"CVE-2026-85600 [MEDIUM] &#8211; Grav Admin (getgrav\/grav-plugin-admin2) versions"},"content":{"rendered":"<p>Grav Admin (getgrav\/grav-plugin-admin2) versions &lt;= 2.0.19 contain a stored cross-site scripting vulnerability in the tHtml() function (src\/lib\/stores\/i18n.svelte.ts), which substitutes untrusted parameters such as usernames into translation templates before parsing the result as markdown. Grav&#039;s server-side username validation (DataUser::isValidUsername) blocks filesystem-dangerous characters but not , &#8220;, or &#8216;, allowing an attacker to register a username containing an HTML payload. When an administrator views a UI surface that renders the username through tHtml()\u2014such as the two-factor force-disable confirmation prompt or the &#8216;page is locked&#8217; editor notice\u2014the payload executes in their authenticated session. Fixed in 2.0.21.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Grav Admin (getgrav\/grav-plugin-admin2) versions<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17130","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17130","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=17130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}