CVE-2022-1002

Public Exploit
HTML Injection while inviting Guests

Description

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.

Remediation

Solution:

  • Update Mattermost to version v6.4 or higher

Categories

2.0
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.29%
Vendor Advisory mattermost.com
Affected: Mattermost Mattermost
Published at:
Updated at:

References

Link Tags
https://mattermost.com/security-updates/ release notes vendor advisory
https://hackerone.com/reports/1443567 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2022-1002?
CVE-2022-1002 has been scored as a low severity vulnerability.
How to fix CVE-2022-1002?
To fix CVE-2022-1002: Update Mattermost to version v6.4 or higher
Is CVE-2022-1002 being actively exploited in the wild?
It is possible that CVE-2022-1002 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-1002?
CVE-2022-1002 affects Mattermost Mattermost.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.