High severity · published Oct 30, 2018
CVE-2018-16466
Improper revalidation of permissions in Nextcloud Server prior to 14.0.0, 13.0.6 and 12.0.11 lead to not accepting access restrictions by acess tokens
8.1
CVSS
1%
EPSS
No
On KEV
Description
Improper revalidation of permissions in Nextcloud Server prior to 14.0.0, 13.0.6 and 12.0.11 lead to not accepting access restrictions by acess tokens.
CVSS vector
CVSS:3.0/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 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 12.0.11; 13.0.0 before 13.0.6; 14.0.0; 14.0.0; 14.0.0; 14.0.0; +2 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-16466
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-16466
Third Party Advisory
https://hackerone.com/reports/388515
Vendor Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2018-010
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