VULNERABILITY INTELLIGENCE

CVE-2017-0884

CVSS score4.3 MEDIUM

EPSS probability0.67%

CISA KEVNot currently listed

Published2017-04-05

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a creation of folders in read-only folders despite lacking permissions issue. Due to a logical error in the file caching layer an authenticated adversary is able to create empty folders inside a shared folder. Note that this only affects folders and files that the adversary has at least read-only permissions for.

Weakness classification

CWE-732: Incorrect Permission Assignment for Critical Resource

Primary references

support@hackerone.com — Third Party Advisory
support@hackerone.com — Broken Link, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Patch, Vendor Advisory