Privilege escalation in Owncloud

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.

Vulnerability class: Privilege Escalation

EPSS: 0.015 (71.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-35946?
CVE-2021-35946 is a critical-severity vulnerability in Owncloud, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2021-09-07.
How severe is CVE-2021-35946?
Critical severity. CVSS v3 base score is 9.8 out of 10.