CVE-2017-18884 is a privilege escalation vulnerability affecting Mattermost Server versions prior to 4.3.0, 4.2.1, and 4.1.2. An attacker can exploit this by leveraging a registered OAuth application in conjunction with personal access tokens to gain elevated privileges. With a CVSS score of 8.1 (HIGH), this vulnerability is easily exploitable over the network with low privileges and no user interaction, potentially leading to high confidentiality and integrity impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.1.2CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
>= 4.2.0, < 4.2.1CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
4.3.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc1:*:*:*:*:*:* | ||
4.3.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc2:*:*:*:*:*:* | ||
4.3.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc3:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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.