High severity · published Feb 4, 2020
CVE-2020-8121
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer
8.1
CVSS
1%
EPSS
No
On KEV
Description
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
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
NS
Nextcloud Server · Nextcloud
before 13.0.9; 14.0.0 before 14.0.5; 14.0.6 before 15.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8121
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8121
Exploit
https://hackerone.com/reports/452854
Vendor Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2019-003
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