CVE-2024-2450 | BDVDB-2026-227614 Detail

MattermostMattermost

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-287 Improper Authentication

References#

https://mattermost.com/security-updates

Exploit#

No public exploit known

History#

Version 12024-03-15Record published in the CVE List.
Version 22024-08-02Most recent update recorded in the CVE List.

Published

Published: 2024-03-15
Last modified: 2024-08-02

Vendor information

Vendor: Mattermost
Product: Mattermost

All Mattermost vulnerabilities

Score

8.8 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 48.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
9.5.0
Fixed
Not stated
Vulnerable
>= 9.4.0 and <= 9.4.2
Fixed
Not stated
Vulnerable
>= 9.3.0 and <= 9.3.1
Fixed
Not stated
Vulnerable
>= 9.2.0 and <= 9.2.5
Fixed
Not stated
Vulnerable
>= 8.1.0 and <= 8.1.9
Fixed
Not stated
Vulnerable
Not stated
Fixed
9.6.0
Vulnerable
Not stated
Fixed
9.4.3
Vulnerable
Not stated
Fixed
9.5.1

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.8 High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).