CVE-2021-37863

CVSS V2 Low 3.5 CVSS V3 Medium 5.7

Description

Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post.

Overview

CVE ID
CVE-2021-37863

Assigner
responsibledisclosure@mattermost.com

Vulnerability Status
Analyzed

Published Version
2021-12-17T17:15:12

Last Modified Date
2021-12-21T17:29:50

Weakness Enumerations

CWE	URL
CWE-20	http://cwe.mitre.org/data/definitions/20.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:mattermost:mattermost_server::::::::	1	OR		6.0

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:M/Au:S/C:N/I:N/A:P

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
SINGLE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
3.5

Severity
LOW

Exploitability Score
6.8

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
REQUIRED

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
5.7

Base Severity
MEDIUM

Exploitability Score
2.1

Impact Score
3.6

References

Reference URL	Reference Tags
https://hackerone.com/reports/1253732	Permissions Required
https://mattermost.com/security-updates/	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-37863
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37863

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:40:27				Added to TrackCVE
2022-12-06 04:18:28	2021-12-17T17:15Z	2021-12-17T17:15:12	CVE Published Date	updated
2022-12-06 04:18:28		2021-12-21T17:29:50	CVE Modified Date	updated
2022-12-06 04:18:28		Analyzed	Vulnerability Status	updated