Medium severity · published Jul 5, 2018
CVE-2018-3762
Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not…
4.3
CVSS
0.9%
EPSS
No
On KEV
Description
Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 12.0.8; 13.0.0 before 13.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-3762
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-3762
Third Party Advisory
https://hackerone.com/reports/358339
Broken Link
https://nextcloud.com/security/advisory/?id=nc-sa-2018-002
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