CVE-2022-27139

Name: CVE-2022-27139
Creator: NVD / NIST
Published: 2022-04-12T17:15:09.84+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.84%

Last modified Jun 17, 2026

CVE-2022-27139 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 3.84% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.84%

88.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Ghost	Ghost	4.39.0

References

http://ghost.org/docs/security/#privilege-escalation-attacks
https://youtu.be/FCqWEvir2wEExploit, Third Party Advisory
http://ghost.org/docs/security/#privilege-escalation-attacks
https://youtu.be/FCqWEvir2wEExploit, Third Party Advisory

Timeline

Published: Apr 12, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-27139?

How severe is CVE-2022-27139?

CVE-2022-27139 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.84% probability of exploitation in the next 30 days.

How do I fix CVE-2022-27139?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-27139?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST