CVE-2022-1002

HTML Injection while inviting Guests

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Mattermost 6.3.0 and earlier fails to properly sanitize the HTML content in the email invitation sent to guest users, which allows registered users with special permissions to invite guest users to inject unescaped HTML content in the email invitations.

Mattermost versiones 6.3.0 y anteriores, no sanean apropiadamente el contenido HTML en la invitación por correo electrónico enviada a usuarios invitados, lo que permite a usuarios registrados con permisos especiales para invitar a usuarios invitados inyectar contenido HTML sin descifrar en las invitaciones por correo electrónico

*Credits: Thanks to Imamul Mursalin for contributing to this improvement under the Mattermost responsible disclosure policy.

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-03-17 CVE Reserved
2022-03-18 CVE Published
2023-10-09 EPSS Updated
2024-08-02 CVE Updated
2024-08-02 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://hackerone.com/reports/1443567	2024-08-02

URL	Date	SRC

URL	Date	SRC
https://mattermost.com/security-updates	2022-03-29

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 Search vendor "Mattermost" for product "Mattermost"				< 6.4.0 Search vendor "Mattermost" for product "Mattermost" and version " < 6.4.0"		-		Affected