CVE-2026-100682CWE-22path-traversal

CVE-2026-100682

High · published September 26, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
46.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00566 · 46.2th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-09-26T18:16Z
References (3)
https://github.com/Budibase/budibase/security/advisories/GHSA-37r6-5jxh-vm83 · [email protected]https://www.vulncheck.com/advisories/budibase-server-before-3.45.0-arbitrary-file-write-via-zip-symlink · [email protected]https://github.com/Budibase/budibase/security/advisories/GHSA-37r6-5jxh-vm83 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 28 SEP 03:25Z
    EPSS moved — → 1%
    epss
  • 26 SEP 13:23Z
    Budibase Server before 3.45.0 Arbitrary File Write via ZIP Symlink
    cvelistv5