Vulnerability · Published Jul 17, 2023 · Assigned by Mattermost

CVE-2023-3613Guest accounts invited and added to channels by Welcomebot plugin

Low 3.5

In plain English

A low-severity incorrect authorization in Mattermost Plugins from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).

Severity (CVSS 3.1)3.5Low
Exploit odds (30 days)0.3%top 77.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default.

Affected products (as reported)

VendorProductVersions
Mattermost Mattermost Plugins 0 – through 7.8.50 – through 7.10.2

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

References