Design/Logic Flaw

2022-03-1818:15:00

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5.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

24.8%

JSON

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.

CPENameOperatorVersion
mattermostlt6.4.0

CPE	Name	Operator	Version
	mattermost	lt	6.4.0

References

hackerone.com/reports/1443567

mattermost.com/security-updates/