Bypassing MFA Enforcement on Plugin Endpoints

published 2025-03-21 19 mo ago modified 2026-06-17 4 mo ago also BIT-mattermost-2025-25068 , EUVD-2025-7222 , GHSA-72qv-j8vr-xvfv , GO-2025-3551

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 28%
public exploits: 0; none known

Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8, 10.5.x <= 10.5.0 fail to enforce MFA on plugin endpoints, which allows authenticated attackers to bypass MFA protections via API requests to plugin-specific routes.

Patch / fix

fixed in 4 distros 1

go github.com/mattermost/mattermost/server/v8 9.11.9, 10.3.4, 10.4.3, 10.5.1
bitnami mattermost 10.0.0, 10.5.1
go github.com/mattermost/mattermost-server 9.11.9+incompatible, 10.3.4+incompatible, 10.4.3+incompatible, 10.5.1+incompatible
Mattermost Mattermost 9.11.9, 10.3.4, 10.4.3, 10.5.1, 10.6.0

govulncheck-vulndb openSUSE Tumbleweed 0.0.20250327T184518-1.1

opensuse advisories openSUSE-SU-2025:14937-1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 19 mo ago (2025-03-21)

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
OSV	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
go	github.com/mattermost/mattermost/server/v8	>=10.4.0, <10.4.3 >=10.3.0, <10.3.4 >=9.11.0, <9.11.9 >=10.5.0, <10.5.1 all versions	10.4.3 10.3.4 9.11.9 10.5.1
bitnami	mattermost	>=9.11.0, <10.0.0 >=10.3.0, <10.5.1	10.0.0 10.5.1
go	github.com/mattermost/mattermost-server	>=9.11.0+incompatible, <9.11.9+incompatible >=10.3.0+incompatible, <10.3.4+incompatible >=10.4.0+incompatible, <10.4.3+incompatible >=10.5.0+incompatible, <10.5.1+incompatible	9.11.9+incompatible 10.3.4+incompatible 10.4.3+incompatible 10.5.1+incompatible
go	github.com/mattermost/mattermost-server/v5	all versions	no fix listed
go	github.com/mattermost/mattermost-server/v6	all versions	no fix listed

Affected products

Mattermost Mattermost

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality

References

mattermost.com /security-updates
web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2025-25068
advisory, web
github.com /mattermost/mattermost
package
github.com /advisories/GHSA-72qv-j8vr-xvfv
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary