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CVE-2024-39772

Silent Desktop Screenshot Capture

MEDIUM
5.3
CVSS Score
Published: September 16, 2024 at 02:27 PM UTC
Updated: June 17, 2026 at 07:42 AM UTC
2 products affected across 1 vendorMattermost DesktopMattermost

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mattermost Desktop· Mattermost
95%
v < 5.9.0
Affected range stops below 5.9.0, so it looks safe — our inference, not a vendor statement
Mattermost· Mattermost
60%
v ≤ 5.8.0
Vendor states this is fixed in 5.9.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://mattermost.com/security-updates

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-284NVD-CWE-noinfo

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