CVE-2021-37860

low-risk
Published 2021-09-22

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.

Do I need to act?

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0.21% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.7/10 Low
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Mattermost

References (2)

Vendor Advisory https://mattermost.com/security-updates/
Vendor Advisory https://mattermost.com/security-updates/
19
/ 100
low-risk
Severity 13/34 · Low
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal