8.3

CVSS Score

3.0

-

CVSS Score

Basic Information

Concerned about an active attack path?

Talk to our security experts and see Miggo in action.

Miggo Vulnerability Database

→

CVE-2023-4433

CVE-2023-4433: Cockpit Cross-site Scripting vulnerability

Cross-site Scripting (XSS) - Stored in GitHub repository cockpit-hq/cockpit version 2.6.3 and prior. A patch is available at commit 36d1d4d256cbbab028342ba10cc493e5c119172c and anticipated to be part of version 2.6.4.

(GitHub Advisory)

Miggo Vulnerability Database

→

CVE-2023-4433

CVE-2023-4433:

8.3

CVSS Score

3.0

-

CVSS Score

Basic Information

Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
cockpit-hq/cockpit	composer	<= 2.6.3

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from two key issues in the file upload handler:

MIME type detection initially used $_file (constructed from user-controlled filename) rather than $files['tmp_name'][$i], potentially leading to incorrect content type validation.
File extension extraction used pathinfo() on user-controlled filenames without proper sanitization, allowing extension spoofing. The patch fixes both by using the temp file for MIME checks and parse_url for extension extraction. This combination of improper input validation in file processing directly enables stored XSS via malicious uploads.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.

Reasoning

*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.

8.3

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2023-4433: Cockpit Cross-site Scripting vulnerability

CVE-2023-4433:

8.3

-

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

CVE-2023-4433: Cockpit Cross-site Scripting vulnerability

Basic Information

Basic Information

8.3

8.3

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Technical Details

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI