CVE-2017-18917 describes a weak hashing vulnerability in Mattermost Server versions before 3.8.2, 3.7.5, and 3.6.7, impacting email invitations, OAuth, and email verification tokens. This high-severity vulnerability (CVSS 7.5) has a low attack complexity and requires no user interaction, potentially leading to high confidentiality impact. There is no evidence of active exploitation, publicly available exploit code, or inclusion in the CISA KEV catalog, though it has received some community and media attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.6.0, < 3.6.7CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
>= 3.7.0, < 3.7.5CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
>= 3.8.0, < 3.8.2CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.