CVE-2021-32683 Information

Description

wire-webapp is the web version of Wire an open-source messenger. A cross-site scripting vulnerability exists in wire-webapp prior to version 2021-06-01-production.0. If a user is instructed to open an image in a new tab (right click -> open in new tab or copy the URL and paste it in the URL bar) an the image payload is executed on the domain hosting the app (app.wire.com). In particular if an image contains malicious code in addition to the actual picture this code is executed on app.wire.com. This allows the attacker to fully control the user account. The vulnerability was patched in version 2021-06-01-production.0. As a workaround users should not try to open image URLs.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Reference

https://github.com/wireapp/wire-webapp/commit/056e39d327bb10c1b0958dfbea0c39752692a1b0 https://github.com/wireapp/wire-webapp/security/advisories/GHSA-382j-mmc8-m5rw

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1