CVE-2022-39257 affects the Matrix iOS SDK prior to version 0.23.19, allowing a malicious homeserver and attacker to forge messages appearing to originate from another user due to a permissive key forwarding strategy. This high-severity vulnerability (CVSS 7.5) has a low attack complexity and can lead to high integrity impact, as it undermines message authenticity. While there is no known active exploitation, public exploit code, or KEV entry, the vulnerability has garnered some community discussion and media coverage, indicating awareness of the issue.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.23.19CPE matchmatch criteria | cpe:2.3:a:matrix:software_development_kit:*:*:*:*:*:iphone_os:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.