CVE-2024-29221

Name: CVE-2024-29221
Creator: NVD / NIST
Published: 2024-04-05T09:15:09.68+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.8/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2024-29221 is a low-severity vulnerability rated 3.8/10 on the CVSS scale. Improper Access Control in Mattermost Server versions 9.5.x before 9.5.2, 9.4.x before 9.4.4, 9.3.x before 9.3.3, 8.1.x before 8.1.11 lacked proper access control in the `/api/v4/users/me/teams` endpoint allowing a team admin to get the invite ID of their team, thus allowing them to invite users, even if the "Add Members" permission was explicitly removed from team admins. . EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

Improper Access Control in Mattermost Server versions 9.5.x before 9.5.2, 9.4.x before 9.4.4, 9.3.x before 9.3.3, 8.1.x before 8.1.11 lacked proper access control in the `/api/v4/users/me/teams` endpoint allowing a team admin to get the invite ID of their team, thus allowing them to invite users, even if the "Add Members" permission was explicitly removed from team admins.

Metrics

CVSS 3.1

3.8/10

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

EPSS Probability

0.33%

24.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Mattermost	Mattermost Server	>= 8.1.0, < 8.1.11
Mattermost	Mattermost Server	>= 9.3.0, < 9.3.3
Mattermost	Mattermost Server	>= 9.4.0, < 9.4.4
Mattermost	Mattermost Server	>= 9.5.0, < 9.5.2

References

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

Timeline

Published: Apr 5, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-29221?

How severe is CVE-2024-29221?

CVE-2024-29221 has a CVSS score of 3.8/10 (LOW severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2024-29221?

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-2024-29221?

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

Scan your code now

Source: NVD / NIST