High severity · published Oct 5, 2020
CVE-2020-8182
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
8.0
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DE
Deck · Nextcloud
0.8.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8182
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8182
Exploit
https://hackerone.com/reports/827816
Vendor Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-025
More from Deck
8.1
CVE-2021-39225
Nextcloud is an open-source, self-hosted productivity platform
6.5
CVE-2023-22470
Nextcloud Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud
6.5
CVE-2021-37631
Deck is an open source kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud
6.5
CVE-2021-22913
Nextcloud Deck before 1.2.7, 1.4.1 suffers from an information disclosure vulnerability when searches for sharees utilize the lookup server by default instead of only the local…
5.5
CVE-2025-66548
Nextcloud Deck app allows to spoof file extensions by using RTLO characters