VULNERABILITY INTELLIGENCE

CVE-2020-8182

CVSS score8 HIGH

EPSS probability1.03%

CISA KEVNot currently listed

Published2020-10-05

Last modified2026-06-17

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

Description

Improper access control in Nextcloud Deck 0.8.0 allowed an attacker to reshare boards shared with them with more permissions than they had themselves.

Weakness classification

CWE-281: Improper Preservation of Permissions
CWE-284: Improper Access Control

Primary references

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