CVE-2021-41101

5.7 MEDIUM

wire-server is an open-source back end for Wire, a secure collaboration platform

Published: 2021-09-30 · Last updated: 2026-06-17

Severity and scoring

CVSS: 5.7 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
CWE: CWE-79

Affected products

Vendor	Product
wire	wire_server

Description

wire-server is an open-source back end for Wire, a secure collaboration platform. Before version 2.106.0, the CORS ` Access-Control-Allow-Origin ` header set by `nginz` is set for all subdomains of `.wire.com` (including `wire.com`). This means that if somebody were to find an XSS vector in any of the subdomains, they could use it to talk to the Wire API using the user's Cookie. A patch does not exist, but a workaround does. To make sure that a compromise of one subdomain does not yield access to the cookie of another, one may limit the `Access-Control-Allow-Origin` header to apps that actually require the cookie (account-pages, team-settings and the webapp).

Source: NVD

References

Related CVEs

Same vendor

CVE-2021-41100 — Wire-server is the backing server for the open source wire secure messaging application (7.4 HIGH)
CVE-2021-41094 — Wire is an open source secure messenger (4.2 MEDIUM)
CVE-2021-41093 — Wire is an open source secure messenger (7.4 HIGH)

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