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CVE-2026-91751— Flextype CMS through 1.0.0-alpha.3 Path Traversal via Entries REST API

Quick assessment

Affected
flextype flextype
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Flextype CMS 在 1.0.0-alpha.3 及之前版本中，Entries REST API 未能正确验证 和 参数，导致拥有 API 令牌的攻击者能够读取、创建或覆盖条目目录之外的文件。攻击者可在 API 请求中使用目录遍历序列，以跳出项目条目目录，从而操纵文件系统中的任意文件和目录。

CVSS 8.3 · High

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2026-91751

Vulnerability Information
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Vulnerability Title
Flextype CMS through 1.0.0-alpha.3 Path Traversal via Entries REST API
Source: CVE Program / CVE List V5
Vulnerability Description
Flextype CMS through 1.0.0-alpha.3 fails to properly validate id and new_id parameters in the Entries REST API, allowing API token holders to read, create, or overwrite files outside the entries directory. Attackers can use traversal sequences in API requests to escape the project entries directory and manipulate arbitrary files and directories on the filesystem.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
flextype flextype 0 ~ 1.0.0-alpha.3 -

II. Public POCs for CVE-2026-91751

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III. Intelligence Information for CVE-2026-91751

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Vendor Advisories for CVE-2026-91751 (1)

Proof of Concept for CVE-2026-91751 (1)

Other References for CVE-2026-91751 (1)

IV. Related Vulnerabilities

Same product: flextype
Same vendor: flextype
Same weakness: CWE-22

V. Comments for CVE-2026-91751

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