VULNERABILITY INTELLIGENCE

CVE-2017-0883

CVSS score6.4 MEDIUM
EPSS probability0.59%
CISA KEVNot currently listed
Published2017-04-05
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Description

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue. A permission related issue within the OCS sharing API allowed an authenticated adversary to reshare shared files with an increasing permission set. This may allow an attacker to edit files in a share despite having only a 'read' permission set. 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