VULNERABILITY INTELLIGENCE
CVE-2021-37860
CVSS score3.7 LOW
EPSS probability0.63%
CISA KEVNot currently listed
Published2021-09-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
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.
Weakness classification
- responsibledisclosure@mattermost.com: CWE-79
- nvd@nist.gov: CWE-79
Primary references
- responsibledisclosure@mattermost.com — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory