Vulnerability · Published Mar 15, 2024 · Assigned by Mattermost

CVE-2024-2450

High 8.8

In plain English

A high-severity improper authentication in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 51.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Mattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to correctly verify account ownership when switching from email to SAML authentication, allowing an authenticated attacker to take over other user accounts via a crafted switch request under specific conditions.

Affected products (as reported)

VendorProductVersions
Mattermost Mattermost 9.5.09.4.0 – through 9.4.29.3.0 – through 9.3.19.2.0 – through 9.2.58.1.0 – through 8.1.9

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References