CVE-2020-8227

moderate-risk
Published 2020-08-21

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.

Do I need to act?

-
0.90% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.8/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Nextcloud

References (6)

Exploit https://hackerone.com/reports/590319
Broken Link https://nextcloud.com/security/advisory/?id=NC-SA-2020-032
Third Party Advisory https://security.gentoo.org/glsa/202009-09
Exploit https://hackerone.com/reports/590319
Broken Link https://nextcloud.com/security/advisory/?id=NC-SA-2020-032
Third Party Advisory https://security.gentoo.org/glsa/202009-09
33
/ 100
moderate-risk
Severity 25/34 · High
Exploitability 3/34 · Minimal
Exposure 5/34 · Minimal