CVE-2021-37862
MEDIUM
5.4
CVSS Score
Published: December 17, 2021 at 04:10 PM UTC
Updated: June 17, 2026 at 04:01 AM UTC
2 products affected across 1 vendorMattermost ServerMattermost
Using Mattermost by Mattermost?
Get instant alerts when new vulnerabilities affect Mattermost - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.4
Exploit prediction
EPSS 0.7%
Description
Mattermost 6.0 and earlier fails to sufficiently validate the email address during registration, which allows attackers to trick users into signing up using attacker-controlled email addresses via crafted invitation token.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 6.0
v ≤ 6.0
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-754
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card