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I. Basic Information for CVE-2026-27641
Vulnerability Information

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Vulnerability Title
Flask-Reuploaded vulnerable to Remote Code Execution via Server-Side Template Injection
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1336
Source: NVD (National Vulnerability Database)
Vulnerability Title
flask-reuploaded 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
flask-reuploaded是Jürgen Gmach个人开发者的一个文件上传服务软件。 Flask-Reuploaded 1.5.0之前版本存在安全漏洞,该漏洞源于路径遍历和扩展名绕过,可能导致任意文件写入和远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
jugmac00flask-reuploaded < 1.5.0 -
II. Public POCs for CVE-2026-27641
#POC DescriptionSource LinkShenlong Link
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opencode/nemotron-3-super-free · 6582 chars
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III. Intelligence Information for CVE-2026-27641
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IV. Related Vulnerabilities
V. Comments for CVE-2026-27641

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