CVE-2017-18897 describes a vulnerability in Mattermost Server versions prior to 4.2.0, 4.1.1, and 4.0.5 when configured as an OAuth 2.0 service provider. This medium-severity vulnerability (CVSS 6.1) is due to improper handling of a "deny" action during redirection, potentially leading to information disclosure or manipulation (CWE-601). While it requires user interaction and network access, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.0.5CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
>= 4.1.0, < 4.1.1CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
4.2.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:4.2.0:rc1:*:*:*:*:*:* | ||
4.2.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:4.2.0:rc2:*:*:*:*:*:* | ||
4.2.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:4.2.0:rc3:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.