Description
Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory.
References (3)
Core 3
Core References
Exploit, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/590319
Broken Link, Exploit, Vendor Advisory x_refsource_misc
https://nextcloud.com/security/advisory/?id=NC-SA-2020-032
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202009-09
Scores
CVSS v3
6.8
EPSS
0.0090
EPSS Percentile
76.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-22
Status
published
Products (1)
nextcloud/desktop
< 2.6.5
Published
Aug 21, 2020
Tracked Since
Feb 18, 2026