CVE-2023-2808 is a medium-severity vulnerability affecting Mattermost, where the platform fails to properly normalize UTF confusable characters in hyperlinks. This flaw allows an attacker to bypass link preview restrictions, potentially triggering previews for disallowed domains. The vulnerability has a CVSS score of 5.3, indicating a low attack complexity and no user interaction required, but only a low impact on confidentiality. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.34.0, < 7.1.9CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:* | ||
>= 7.2.0, < 7.8.4CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:* | ||
>= 7.9.0, < 7.9.3CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:* | ||
>= 0, < 7.1.9CPE match | cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:* | ||
>= 0, < 7.8.4CPE match | cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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.