3.7

CVSS Score

3.1

-

CVSS Score

Basic Information

CVE ID

CVE-2024-39772

GHSA ID

GHSA-5777-rcjj-9p22

EPSS Score

0.29519%

CWE

CWE-284

Published

9/16/2024

Updated

11/18/2024

KEV Status

Technology

JavaScript

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

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CVE-2024-39772

CVE-2024-39772: Mattermost Desktop App fails to safeguard screen capture functionality

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.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2024-39772

CVE-2024-39772:

3.7

CVSS Score

3.1

-

CVSS Score

Basic Information

CVE ID

CVE-2024-39772

GHSA ID

GHSA-5777-rcjj-9p22

EPSS Score

0.29519%

CWE

CWE-284

Published

9/16/2024

Updated

11/18/2024

KEV Status

Technology

JavaScript

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

Technical Details

CVSS Vector

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

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
mattermost-desktop	npm	< 5.9.0	5.9.0

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from improper access control (CWE-284) in Electron's screen capture functionality. Analysis suggests:

The desktopCapturer API was likely exposed to untrusted renderer processes without permission prompts
WebPreferences configuration in BrowserWindow creation probably had dangerous settings (nodeIntegration: true, contextIsolation: false)
Lack of IPC mediation between renderer and main process for screen capture operations While exact implementation details aren't available, these are common Electron security patterns. The confidence is medium as the assessment is based on vulnerability patterns in Electron apps rather than specific code observations.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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3.7

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2024-39772: Mattermost Desktop App fails to safeguard screen capture functionality

CVE-2024-39772:

3.7

-

Basic Information

Basic Information

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability IntelligenceMiggo AI

3.7

3.7

CVE-2024-39772: Mattermost Desktop App fails to safeguard screen capture functionality

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Basic Information

Basic Information

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI