{"id":75780,"date":"2026-01-08T13:20:23","date_gmt":"2026-01-08T09:50:23","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-21873-zero-click-xss-in-all-nicegui-apps-which-uses-ui-sub_pages\/"},"modified":"2026-01-08T13:20:23","modified_gmt":"2026-01-08T09:50:23","slug":"cve-2026-21873-zero-click-xss-in-all-nicegui-apps-which-uses-ui-sub_pages","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-21873-zero-click-xss-in-all-nicegui-apps-which-uses-ui-sub_pages\/","title":{"rendered":"CVE-2026-21873 &#8211; Zero-click XSS in all NiceGUI apps which uses `ui.sub_pages`"},"content":{"rendered":"<p>CVE ID : CVE-2026-21873<\/p>\n<p>Published :  Jan. 8, 2026, 9:50 a.m. | 37\u00a0minutes ago<\/p>\n<p>Description : NiceGUI is a Python-based UI framework. From versions 2.22.0 to 3.4.1, an unsafe implementation in the pushstate event listener used by ui.sub_pages allows an attacker to manipulate the fragment identifier of the URL, which they can do despite being cross-site, using an iframe. This issue has been patched in version 3.5.0.<\/p>\n<p>Severity: 0.0 | NA<\/p>\n<p>Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2026-21873 Published : Jan. 8, 2026, 9:50 a.m. | 37\u00a0minutes ago Description : NiceGUI is a Python-based UI framework. From versions 2.22.0 to 3.4.1, an unsafe implementation in the pushstate event listener used by ui.sub_pages allows an attacker to manipulate the fragment identifier of the URL, which they can do despite being &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-75780","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/75780","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=75780"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/75780\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=75780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=75780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=75780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}