CVE-2024-2450

Name: CVE-2024-2450
Creator: NVD / NIST
Published: 2024-03-15T10:15:08.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.60%

Last modified Jun 17, 2026

CVE-2024-2450 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. . EPSS estimates a 0.60% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.60%

44.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mattermost	Mattermost Server	>= 8.1.0, < 8.1.10
Mattermost	Mattermost Server	>= 9.2.0, < 9.2.6
Mattermost	Mattermost Server	>= 9.3.0, < 9.3.2
Mattermost	Mattermost Server	>= 9.4.0, < 9.4.3
Mattermost	Mattermost Server	9.5.0

References

https://mattermost.com/security-updatesVendor Advisory
https://mattermost.com/security-updatesVendor Advisory

Timeline

Published: Mar 15, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-2450?

How severe is CVE-2024-2450?

CVE-2024-2450 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.

How do I fix CVE-2024-2450?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-2450?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST