What is CVE-2024-40884?

CVE-2024-40884 is a low-severity vulnerability in Mattermost, classified under Improper Access Control. CVSS score: 2.7/10. Published 2024-08-22.

How severe is CVE-2024-40884?

Low severity. CVSS v3 base score is 2.7 out of 10.

Vulnerability in Mattermost

CVE-2024-40884

Mattermost versions 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 fail to properly enforce permissions which allows a team admin user without "Add Team Members" permission to disable the invite URL.

Published 2024-08-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.004 (30.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Mattermost — versions 9.5.0, 9.10.0, 9.11.0
Mattermost Server — versions 9.10.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

mattermost.com/security-updates (Vendor Advisory)

Frequently asked questions

What is CVE-2024-40884?: CVE-2024-40884 is a low-severity vulnerability in Mattermost, classified under Improper Access Control. CVSS score: 2.7/10. Published 2024-08-22.
How severe is CVE-2024-40884?: Low severity. CVSS v3 base score is 2.7 out of 10.