CVE-2020-8223

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-269

Affected software

Vendor	Product	Versions
n/a	Nextcloud Server	Fixed in 19.0.1

References

Timeline

Published: Oct 5, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-82247.8A code injection in Nextcloud Desktop Client 2.6.4 allowed to load arbitrary code when placing a malicious OpenSSL config into a fixed direc CVE-2020-82257.5A cleartext storage of sensitive information in Nextcloud Desktop Client 2.6.4 gave away information about used proxies and their authentica CVE-2020-82265.8A vulnerability exists in phpBB <v3.2.10 and <v3.3.1 which allowed remote image dimensions check to be used to SSRF.CVE-2020-82276.8Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files ou CVE-2020-82285.3A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password an uncontrolled amount of times.CVE-2020-82295.5A memory leak in the OCUtil.dll library used by Nextcloud Desktop Client 2.6.4 can lead to a DoS against the host system.CVE-2020-82305.5A memory corruption vulnerability exists in NextCloud Desktop Client v2.6.4 where missing ASLR and DEP protections in for windows allowed to CVE-2020-82317.5Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.CVE-2020-82326.5An information disclosure vulnerability exists in EdgeMax EdgeSwitch firmware v1.9.0 that allowed read only users could obtain unauthorized CVE-2020-82338.8A command injection vulnerability exists in EdgeSwitch firmware <v1.9.0 that allowed an authenticated read-only user to execute arbitrary sh CVE-2020-82349.8A vulnerability exists in The EdgeMax EdgeSwitch firmware <v1.9.1 where the EdgeSwitch legacy web interface SIDSSL cookie for admin can be g CVE-2020-82354.3Missing access control in Nextcloud Deck 1.0.4 caused an insecure direct object reference allowing an attacker to view all attachments.