CVE-2024-39772

5.3 mediumEPSS 0.3%

Medium (5.3) in mattermost mattermost desktop. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in mattermost-desktop 5.9.0.

Mattermost Desktop App versions <=5.8.0 fail to safeguard screen capture functionality which allows an attacker to silently capture high-quality screenshots via JavaScript APIs.

Severity

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-31)
CWE: CWE-284
Published: 2024-09-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mattermost:mattermost_desktop

Packages (OSV)

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-5777-rcjj-9p22	npm	mattermost-desktop	<5.9.0	5.9.0

References

https://mattermost.com/security-updates

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