VulnerabilityModified
CVE-2020-8227
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.
MEDIUM 6.8EPSS 25.8%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 25.8%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 25.77% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- nextcloud/desktop
- Source
- support@hackerone.com
References
- https://hackerone.com/reports/590319Exploit, Third Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-032Broken Link, Exploit, Vendor Advisory
- https://security.gentoo.org/glsa/202009-09Third Party Advisory
- https://hackerone.com/reports/590319Exploit, Third Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-032Broken Link, Exploit, Vendor Advisory
- https://security.gentoo.org/glsa/202009-09Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.