CVE-2024-2450: 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…

PriorityP354high8.8CVSS 3.1

AVNACLPRLUINSUCHIHAH

EPSS

0.60%

44.6th percentile

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

10 ranges

Vendor	Product	Version range	Fixed in
mattermost	mattermost	—	—
mattermost	mattermost	8.1.0 – 8.1.9	—
mattermost	mattermost	9.2.0 – 9.2.5	—
mattermost	mattermost	9.3.0 – 9.3.1	—
mattermost	mattermost	9.4.0 – 9.4.2	—
mattermost	mattermost_server	—	—
mattermost	mattermost_server	>= 8.1.0 < 8.1.10	8.1.10
mattermost	mattermost_server	>= 9.2.0 < 9.2.6	9.2.6
mattermost	mattermost_server	>= 9.3.0 < 9.3.2	9.3.2
mattermost	mattermost_server	>= 9.4.0 < 9.4.3	9.4.3

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.