What is the severity of CVE-2022-27139?

CVE-2022-27139 is considered a high severity vulnerability due to its potential for arbitrary file upload and code execution.

How do I fix CVE-2022-27139?

To mitigate CVE-2022-27139, ensure that file uploads are restricted to trusted authenticated users and consider disabling SVG uploads if not necessary.

What versions of Ghost are affected by CVE-2022-27139?

CVE-2022-27139 specifically affects Ghost version 4.39.0.

Can CVE-2022-27139 be exploited by unauthenticated users?

According to the vendor, CVE-2022-27139 can only be exploited by trusted authenticated users.

What type of file can be used in an attack for CVE-2022-27139?

An attacker can exploit CVE-2022-27139 by uploading a crafted SVG file to execute arbitrary code.

Vulnerability/
CVE-2022-27139

critical

9.8

CWE

434

12/4/2022

3/8/2024

CVE-2022-27139: Malicious File Upload

First published: Tue Apr 12 2022(Updated: )

** DISPUTED ** An arbitrary file upload vulnerability in the file upload module of Ghost v4.39.0 allows attackers to execute arbitrary code via a crafted SVG file. NOTE: Vendor states that as outlined in Ghost's security documentation, upload of SVGs is only possible by trusted authenticated users. The uploading of SVG files to Ghost does not represent a remote code execution vulnerability. SVGs are not executable on the server, and may only execute javascript in a client's browser - this is expected and intentional functionality.

Credit: cve@mitre.org cve@mitre.org

Affected Software	Affected Version	How to fix
Ghost Ghost Node.js	=4.39.0

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2022-27139?
CVE-2022-27139 is considered a high severity vulnerability due to its potential for arbitrary file upload and code execution.
How do I fix CVE-2022-27139?
To mitigate CVE-2022-27139, ensure that file uploads are restricted to trusted authenticated users and consider disabling SVG uploads if not necessary.
What versions of Ghost are affected by CVE-2022-27139?
CVE-2022-27139 specifically affects Ghost version 4.39.0.
Can CVE-2022-27139 be exploited by unauthenticated users?
According to the vendor, CVE-2022-27139 can only be exploited by trusted authenticated users.
What type of file can be used in an attack for CVE-2022-27139?
An attacker can exploit CVE-2022-27139 by uploading a crafted SVG file to execute arbitrary code.

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vendor/ghost
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version/ghost ghost node.js/4.39.0
status/disputed

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