{"id":76531,"date":"2026-02-07T01:46:11","date_gmt":"2026-02-06T22:16:11","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-25732-niceguis-path-traversal-via-unsanitized-fileupload-name-enables-arbitrary-file-write\/"},"modified":"2026-02-07T01:46:11","modified_gmt":"2026-02-06T22:16:11","slug":"cve-2026-25732-niceguis-path-traversal-via-unsanitized-fileupload-name-enables-arbitrary-file-write","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-25732-niceguis-path-traversal-via-unsanitized-fileupload-name-enables-arbitrary-file-write\/","title":{"rendered":"CVE-2026-25732 &#8211; NiceGUI&#8217;s Path Traversal via Unsanitized FileUpload.name Enables Arbitrary File Write"},"content":{"rendered":"<p>CVE ID : CVE-2026-25732<\/p>\n<p>Published :  Feb. 6, 2026, 10:16 p.m. | 1\u00a0hour, 3\u00a0minutes ago<\/p>\n<p>Description : NiceGUI is a Python-based UI framework. Prior to 3.7.0, NiceGUI&#8217;s FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOAD_DIR \/ file.name. Malicious filenames containing ..\/ sequences allow attackers to write files outside intended directories, with potential for remote code execution through application file overwrites in vulnerable deployment patterns. This design creates a prevalent security footgun affecting applications following common community patterns. Note: Exploitation requires application code incorporating file.name into filesystem paths without sanitization. Applications using fixed paths, generated filenames, or explicit sanitization are not affected. This vulnerability is fixed in 3.7.0.<\/p>\n<p>Severity: 7.5 | HIGH<\/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-2026-25732 Published : Feb. 6, 2026, 10:16 p.m. | 1\u00a0hour, 3\u00a0minutes ago Description : NiceGUI is a Python-based UI framework. Prior to 3.7.0, NiceGUI&#8217;s FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOAD_DIR \/ file.name. Malicious filenames containing ..\/ sequences allow attackers to write &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-76531","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/76531","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=76531"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/76531\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=76531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=76531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=76531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}