CVE-2021-41101 is a medium-severity Cross-Site Scripting (XSS) vulnerability affecting wire-server, the backend for the Wire secure collaboration platform, specifically versions prior to 2.106.0. The vulnerability stems from an overly permissive Access-Control-Allow-Origin header, allowing all subdomains of .wire.com to access the Wire API using a user's cookie if an XSS vector is found on any subdomain. This could lead to a compromise of user cookies, resulting in high confidentiality impact. While no patch exists, a workaround involves restricting the header to only necessary applications. There is no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.106.0CPE matchmatch criteria | cpe:2.3:a:wire:wire_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.