Budibase
CVE-2026-30240
CRITICAL
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
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.
AnalysisAI
Path traversal in Budibase low-code platform 3.31.5 and earlier allows attackers to read arbitrary files through the application builder.
Technical ContextAI
CWE-22 path traversal in Budibase. Third critical vulnerability in the low-code platform this batch.
RemediationAI
Update Budibase.
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Authorization bypass in Budibase 3.31.4 and earlier. The authorized() middleware can be bypassed, enabling injection att
Budibase is a low code platform for creating internal tools, workflows, and admin panels. [CVSS 8.8 HIGH]
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Filesystem existence and readability probing in Budibase Cloud's MongoDB integration prior to version 3.40.1 exposes an
Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
Leaving vuln.today