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Vulnerability record · CVE-2022-27139 · published 12 April 2022

CVE-2022-27139: Ghost unrestricted file upload vulnerability

Ghost · Ghost

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

9.8 CVSS 3.1 Critical EPSS 4.0% · top 9.7% CWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score, v2 7.5
4.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://ghost.org/docs/security/#privilege-escalation-attacks
https://youtu.be/FCqWEvir2wE ExploitThird Party Advisory
http://ghost.org/docs/security/#privilege-escalation-attacks
https://youtu.be/FCqWEvir2wE ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-27139), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.