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CVE-2026-104478— Formwork before 2.3.13 Path Traversal via BackupController Download and Delete

Quick assessment

Affected
getformwork formwork
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.

Formwork 2.3.13 之前的版本中，BackupController 存在一个路径遍历漏洞，允许经过身份验证的后台面板用户读取或删除任意文件。拥有备份下载或删除权限的攻击者可以构造一个以反斜杠分隔的、经过 Base64 编码的路径遍历载荷，该载荷能够绕过 PHP 在 Linux 系统上的 basename 函数，从而访问备份目录之外的任意文件。

CVSS 7.1 · High
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I. Basic Information for CVE-2026-104478

Vulnerability Information
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Vulnerability Title
Formwork before 2.3.13 Path Traversal via BackupController Download and Delete
Source: CVE Program / CVE List V5
Vulnerability Description
Formwork before 2.3.13 contains a path traversal vulnerability in BackupController that allows authenticated panel users to read or delete arbitrary files. Attackers with backup download or delete permission can supply a base64-encoded backslash-separated traversal payload that bypasses PHP basename on Linux to access files outside the backup directory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
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
getformwork formwork 0 ~ 2.3.13 -

II. Public POCs for CVE-2026-104478

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III. Intelligence Information for CVE-2026-104478

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Patches & Fixes for CVE-2026-104478 (1)

Vendor Advisories for CVE-2026-104478 (1)

Security Blog Posts for CVE-2026-104478 (1)

IV. Related Vulnerabilities

Same product: formwork
Same vendor: getformwork
Same weakness: CWE-22

V. Comments for CVE-2026-104478

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