CVE-2026-100682
Budibase Server before 3.45.0 Arbitrary File Write via ZIP Symlink
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
Budibase Server before 3.45.0 contains an arbitrary file write vulnerability in the PWA icon upload endpoint that extracts user-supplied ZIP archives without proper symlink validation. Attackers with BUILDER role can craft a malicious ZIP with leaf symlink entries followed by duplicate file entries to write arbitrary files as root, enabling remote code execution.
| CWE | CWE-22 |
| Vendor | budibase |
| Product | server |
| Published | Sep 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
budibase / server
0 < 3.45.0
References
Credits
🔍 dreamer1eh