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I. Basic Information for CVE-2026-28791
Vulnerability Information

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Vulnerability Title
Path Traversal in Media Upload Handle in Tina
Source: NVD (National Vulnerability Database)
Vulnerability Description
Tina is a headless content management system. Prior to 2.1.7, a path traversal vulnerability exists in the TinaCMS development server's media upload handler. The code at media.ts joins user-controlled path segments using path.join() without validating that the resulting path stays within the intended media directory. This allows writing files to arbitrary locations on the filesystem. This vulnerability is fixed in 2.1.7.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
TinaCMS 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TinaCMS是Tina开源的一个用于 Markdown、MDX 和 JSON 的开源无头 CMS。 TinaCMS 2.1.7之前版本存在路径遍历漏洞,该漏洞源于TinaCMS开发服务器的媒体上传处理程序存在路径遍历问题,可能导致向文件系统任意位置写入文件。
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
tinacmstinacms < 2.1.7 -
II. Public POCs for CVE-2026-28791
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III. Intelligence Information for CVE-2026-28791
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