CVE-2019-20879 describes a vulnerability in Mattermost Server versions prior to 5.8.0, 5.7.2, 5.6.5, and 4.10.7, where changes to a user's email address do not require re-authentication. This medium-severity issue (CVSS 4.3) has a low attack complexity and requires local user privileges, potentially allowing an attacker to modify an email address without proper credential verification, leading to a loss of integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.10.7CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
>= 5.6.0, < 5.6.5CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
>= 5.7.0, < 5.7.2CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | ||
5.8.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:5.8.0:rc1:*:*:*:*:*:* | ||
5.8.0CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:5.8.0:rc2:*:*:*:*:*:* |
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 0.1 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.