CVE-2021-32653

mediumpriority · track · 11EPSS 0.012 · 68 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
1.21% (68th) EPSS
CVSS 4 · medium
Is it mine?
6 products
Check your exposure
Who says so?
3 sources
cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

4.0
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.5–4

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9
v3.12.7lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 1.2 · impact 1.4
v3.12.7lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU
v3.12.7lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:Nsecondary · security-advisories@github.comexploitability 1.2 · impact 1.4
v3.12.5lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-201US
03

affected products (6)

Products and version ranges known to be affected.

04

also known as (2)

Other names and identifiers for this entity.

05

sources

Which sources assert this record, and when.

cnnvdenisa_euvdnvdNVDCVE.orgMITRE
published 2021-06-01modified 2026-06-17
06

references (10)

External citations — patches, advisories, analysis.

scry

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