CVE-2021-21400

mediumpriority · track · 26EPSS 0.012 · 69 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
1.24% (69th) EPSS
CVSS 4.3 · medium
Is it mine?
168 products
Check your exposure
Who says so?
3 sources
cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

wire-webapp is an open-source front end for Wire, a secure collaboration platform. In wire-webapp before version 2021-03-15-production.0, when being prompted to enter the app-lock passphrase, the typed passphrase will be sent into the most recently used chat when the user does not actively give focus to the input field. Input element focus is enforced programatically in version 2021-03-15-production.0.

01

cvss

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

7.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.3–7.1

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6
v3.17.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:Nsecondary · ENISA EU
v3.17.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:Nsecondary · security-advisories@github.comexploitability 2.8 · impact 4.2
v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

03

affected products (168)

Products and version ranges known to be affected.

showing 20 of 168
04

also known as (2)

Other names and identifiers for this entity.

05

sources

Which sources assert this record, and when.

published 2021-04-02modified 2026-06-17
07

references (13)

External citations — patches, advisories, analysis.

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