What is CVE-2025-31947?

CVE-2025-31947 is a medium-severity vulnerability in Mattermost, classified under CWE-645. CVSS score: 5.8/10. Published 2025-05-15.

How severe is CVE-2025-31947?

Medium severity. CVSS v3 base score is 5.8 out of 10.

Vulnerability in Mattermost

CVE-2025-31947

Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to lockout LDAP users following repeated login failures, which allows attackers to lock external LDAP accounts through repeated login failures…

EPSS: 0.004 (58.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.

Affected products

Mattermost — versions 10.6.0, 10.5.0, 10.4.0

Weakness classification (CWE)

CWE-645

References

mattermost.com/security-updates

Frequently asked questions

What is CVE-2025-31947?: CVE-2025-31947 is a medium-severity vulnerability in Mattermost, classified under CWE-645. CVSS score: 5.8/10. Published 2025-05-15.
How severe is CVE-2025-31947?: Medium severity. CVSS v3 base score is 5.8 out of 10.