{"id":77941,"date":"2026-02-25T07:46:04","date_gmt":"2026-02-25T04:16:04","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-27641-flask-reuploaded-vulnerable-to-remote-code-execution-via-server-side-template-injection\/"},"modified":"2026-02-25T07:46:04","modified_gmt":"2026-02-25T04:16:04","slug":"cve-2026-27641-flask-reuploaded-vulnerable-to-remote-code-execution-via-server-side-template-injection","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-27641-flask-reuploaded-vulnerable-to-remote-code-execution-via-server-side-template-injection\/","title":{"rendered":"CVE-2026-27641 &#8211; Flask-Reuploaded vulnerable to Remote Code Execution via Server-Side Template Injection"},"content":{"rendered":"<p>CVE ID : CVE-2026-27641<\/p>\n<p>Published :  Feb. 25, 2026, 4:16 a.m. | 51\u00a0minutes ago<\/p>\n<p>Description : Flask-Reuploaded provides file uploads for Flask. A critical path traversal and extension bypass vulnerability in versions prior to 1.5.0 allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI). Flask-Reuploaded has been patched in version 1.5.0. Some workarounds are available. Do not pass user input to the `name` parameter, use auto-generated filenames only, and implement strict input validation if `name` must be used.<\/p>\n<p>Severity: 9.8 | CRITICAL<\/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-2026-27641 Published : Feb. 25, 2026, 4:16 a.m. | 51\u00a0minutes ago Description : Flask-Reuploaded provides file uploads for Flask. A critical path traversal and extension bypass vulnerability in versions prior to 1.5.0 allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI). Flask-Reuploaded has been &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-77941","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77941","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=77941"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77941\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=77941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=77941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=77941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}