CVE-2021-37860

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CVSS 3.1

6.1 medium

EPSS

<1%p48

Published

Sep 22, 2021 (Sep 22, 2021)

Modified

Jun 17, 2026

Description

Mattermost 5.38 and earlier fails to sufficiently sanitize clipboard contents, which allows a user-assisted attacker to inject arbitrary web script in product deployments that explicitly disable the default CSP.

Vendors: mattermost
Products: mattermost
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.6%)

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