CVE-2023-2515

Privilege escalation to system admin via personal access tokens

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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

*Credits: Eva Sarafianou

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-05-04 CVE Reserved
2023-05-12 CVE Published
2024-12-06 CVE Updated
2025-04-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-863: Incorrect Authorization

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://mattermost.com/security-updates	2023-05-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mattermost Search vendor "Mattermost"		Mattermost Server Search vendor "Mattermost" for product "Mattermost Server"				< 7.1.8 Search vendor "Mattermost" for product "Mattermost Server" and version " < 7.1.8"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Server Search vendor "Mattermost" for product "Mattermost Server"				>= 7.2.0 < 7.7.4 Search vendor "Mattermost" for product "Mattermost Server" and version " >= 7.2.0 < 7.7.4"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Server Search vendor "Mattermost" for product "Mattermost Server"				>= 7.8.0 < 7.8.3 Search vendor "Mattermost" for product "Mattermost Server" and version " >= 7.8.0 < 7.8.3"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Server Search vendor "Mattermost" for product "Mattermost Server"				>= 7.9.0 < 7.9.2 Search vendor "Mattermost" for product "Mattermost Server" and version " >= 7.9.0 < 7.9.2"		-		Affected