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Vulnerability Details : CVE-2021-41101

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 `` (including ``). 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).
Publish Date : 2021-09-30 Last Update Date : 2021-10-07
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication ???
Gained Access None
Vulnerability Type(s) Cross Site Scripting

- Products Affected By CVE-2021-41101

# Product Type Vendor Product Version Update Edition Language
1 Application Wire Wire Server * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Wire Wire Server 1

- References For CVE-2021-41101 CONFIRM

- Metasploit Modules Related To CVE-2021-41101

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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