CVE-2026-72837
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
Summary
File Browser versions before 2.63.20 fail to honor the createUserDir isolation in proxy and hook authentication auto-provisioning paths. Attackers with valid upstream-authenticated credentials can read, modify, delete, and share files belonging to other users by exploiting the server root scope assignment.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| filebrowser | filebrowser | 0 < 2.63.20 | affected |
| filebrowser | filebrowser | 2.63.20 | unaffected |
Weaknesses
- CWE-284: Improper Access Control
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: total
References
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-j7jh-37pf-mf8h
- https://www.vulncheck.com/advisories/file-browser-before-privilege-escalation-via-proxy-authentication
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