CVE-2021-32653CWE-201

Default settings leak federated cloud ID to lookup server of all users

Low · published June 1, 2021

CVSS v3.1
2.7
EPSS
1%
Percentile
68.1
In the wild
Unconfirmed
What it is

Nextcloud Server is a Nextcloud package that handles data storage. Nextcloud Server versions prior to 19.0.11, 20.0.10, or 21.0.2 send user IDs to the lookup server even if the user has no fields set to published. The vulnerability is patched in versions 19.0.11, 20.0.10, and 21.0.2; no workarounds outside the updates are known to exist.

The record
Technical detail
CVSS v3.1
2.7 · LOW
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.01205 · 68.1th percentile
Weakness
CWE-201 · Insertion of Sensitive Information Into Sent Data
Published
2021-06-01T19:50Z
EPSS history
Timeline
  • 01 JUN 19:50Z
    Default settings leak federated cloud ID to lookup server of all users
    cvelistv5