CVE-2021-21400: Wire Wire-Webapp

Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days.

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.

Affected products

• Wire Wire-Webapp: up to and including 2019-07-11-13-18; version 2019-02-11 only; version 2019-02-13 only; version 2019-02-18 only; version 2019-02-27 only; version 2019-02-28 only; …

Published 2021-04-02. Last modified 2026-06-17.