CVE-2022-27139

12.04.2022, 17:15

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

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	9.8 CRITICAL	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitre	CNA	---				---
CISA-ADP	ADP	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 90%

Vendor	Product	Version
ghost	ghost	4.39.0

𝑥

= Vulnerable software versions

Known Exploits!

Common Weakness Enumeration

CWE-434 - Unrestricted Upload of File with Dangerous Type
The software allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment.

References

http://ghost.org/docs/security/#privilege-escalation-attacks

https://youtu.be/FCqWEvir2wE

http://ghost.org/docs/security/#privilege-escalation-attacks

https://youtu.be/FCqWEvir2wE