Critical severity · published Sep 7, 2021
CVE-2021-35946
A receiver of a federated share with access to the database with ownCloud version before 10.8 could update the permissions and therefore elevate their own permissions
9.8
CVSS
1.5%
EPSS
No
On KEV
Description
A receiver of a federated share with access to the database with ownCloud version before 10.8 could update the permissions and therefore elevate their own permissions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OW
Owncloud · Owncloud
before 10.8.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-35946
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-35946
Release Notes
https://doc.owncloud.com/server/admin_manual/release_notes.html
Vendor Advisory
https://owncloud.com/security-advisories/cve-2021-35946/
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