CVE-2023-2515

Name: CVE-2023-2515
Creator: NVD / NIST
Published: 2023-05-12T09:15:10.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2023-2515 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Mattermost fails to restrict a user with permissions to edit other users and to create personal access tokens from elevating their privileges to system admin . EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

Mattermost fails to restrict a user with permissions to edit other users and to create personal access tokens from elevating their privileges to system admin

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.47%

37.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mattermost	Mattermost Server	< 7.1.8
Mattermost	Mattermost Server	>= 7.2.0, < 7.7.4
Mattermost	Mattermost Server	>= 7.8.0, < 7.8.3
Mattermost	Mattermost Server	>= 7.9.0, < 7.9.2

References

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

Timeline

Published: May 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-2515?

Mattermost fails to restrict a user with permissions to edit other users and to create personal access tokens from elevating their privileges to system admin

How severe is CVE-2023-2515?

CVE-2023-2515 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2023-2515?

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-2023-2515?

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

Scan your code now

Source: NVD / NIST