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CVE-2026-30240— Budibase PWA ZIP Upload Path Traversal Allows Reading Arbitrary Server Files Including All Environment Secrets

Quick assessment

Affected
Budibase budibase
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.

Budibase是英国Budibase开源的一个用于在几分钟内创建内部应用程序、工作流和管理面板的低代码平台。 Budibase 3.31.5及之前版本存在安全漏洞，该漏洞源于PWA ZIP处理端点存在路径遍历问题，可能导致经过身份验证的用户读取服务器上的任意文件，进而导致平台完全被破解。

CVSS 9.6 · Critical EPSS 0.32% · P22
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I. Basic Information for CVE-2026-30240

Vulnerability Information
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Vulnerability Title
Budibase PWA ZIP Upload Path Traversal Allows Reading Arbitrary Server Files Including All Environment Secrets
Source: CVE Program / CVE List V5
Vulnerability Description
Budibase is a low code platform for creating internal tools, workflows, and admin panels. In 3.31.5 and earlier, a path traversal vulnerability in the PWA (Progressive Web App) ZIP processing endpoint (POST /api/pwa/process-zip) allows an authenticated user with builder privileges to read arbitrary files from the server filesystem, including /proc/1/environ which contains all environment variables — JWT secrets, database credentials, encryption keys, and API tokens. The server reads attacker-specified files via unsanitized path.join() with user-controlled input from icons.json inside the uploaded ZIP, then uploads the file contents to the object store (MinIO/S3) where they can be retrieved through signed URLs. This results in complete platform compromise as all cryptographic secrets and service credentials are exfiltrated in a single request.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
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
Vulnerability Title
Budibase 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Budibase是英国Budibase开源的一个用于在几分钟内创建内部应用程序、工作流和管理面板的低代码平台。 Budibase 3.31.5及之前版本存在安全漏洞，该漏洞源于PWA ZIP处理端点存在路径遍历问题，可能导致经过身份验证的用户读取服务器上的任意文件，进而导致平台完全被破解。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Budibase budibase <= 3.31.5 -

II. Public POCs for CVE-2026-30240

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III. Intelligence Information for CVE-2026-30240

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Vendor Advisories for CVE-2026-30240 (1)

Same Patch Batch · Budibase · 2026-03-09 · 5 CVEs total

CVE-2026-31816 9.1 CRITICAL Budibase Universal Auth Bypass via Webhook Query Param Injection
CVE-2026-25737 8.9 HIGH Budibase Arbitrary File Upload Leading to Multiple Critical Vulnerabilities (SSRF, Stored
CVE-2026-25045 Budibase Critical Privilege Escalation & IDOR via Missing RBAC on User Role Management (Cr
CVE-2026-25041 Budibase has a Command Injection in PostgreSQL Dump Command

IV. Related Vulnerabilities

Same product: budibase
Same vendor: Budibase
Same weakness: CWE-22

V. Comments for CVE-2026-30240

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