{"id":"CVE-2026-100682","title":"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","summary":"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 ZI…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-22"],"vendor":"budibase","product":"server","affected":["server < 3.45.0"],"published":"2026-09-26","updated":"2026-10-08","sourceUpdated":"2026-10-08T16:16:58.553","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100682","references":[{"url":"https://github.com/Budibase/budibase/security/advisories/GHSA-37r6-5jxh-vm83","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/budibase-server-before-3.45.0-arbitrary-file-write-via-zip-symlink","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Budibase/budibase/security/advisories/GHSA-37r6-5jxh-vm83","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-30T15:01:12.801469Z"},"epss":0.00724,"epssPercentile":0.53855,"ingestedAt":"2026-09-26T13:33:20.909Z","slug":"CVE-2026-100682","body":"## Overview\n\nBudibase 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":61,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":213751,"id":"CVE-2026-100682","ts":1790784792849,"field":"exploit_available","old":"false","new":"true"}]}