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Critical

Arbitrary file upload in Ghost

  • Disclosed: 13.04.2022
  • Updated: 11.10.2026 10:22

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.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
npm package ghost <= 4.39.0 no fix

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-434
Platform
npm
Package
ghost
Disclosed
13.04.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-fvc6-qjp7-m4g4 - CC BY 4.0

Vulnerability history: ghost

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (61) in the archive
Total entries
61
First → latest
04.2021 10.2026
Without a fix
3
Exploited in attacks
0

Severity breakdown

  • Critical 4
  • High 16
  • Medium 38
  • Low 3

Disclosures per year

Severity:
  1. Ghost: Remote Code Execution via Bookmark Card Images
    High · 8.8 CVE-2026-105642 >= 6.56.0, < 6.67.0 6.67.0
  2. Ghost: Stored XSS via Embed Card Previews
    High · 7.3 CVE-2026-105643 >= 6.34.0, < 6.67.0 6.67.0
  3. Ghost: Stored XSS via SVG Uploads Bypassing Sanitization
    High · 7.3 CVE-2026-105649 >= 4.22.0, < 6.65.0 6.65.0
  4. Ghost: Stored XSS via oEmbed Photo Responses
    High · 8.1 CVE-2026-104414 >= 2.5.0, < 6.64.0 6.64.0
  5. Ghost: Stored XSS via Bookmark Card Images
    High · 7.3 CVE-2026-104413 >= 5.94.0, < 6.64.0 6.64.0
  6. Ghost: Invite Token Disclosure in Ghost Admin API
    High · 7.5 CVE-2026-104416 >= 4.39.0, < 6.64.0 6.64.0
  7. Ghost: Remote Code Execution via Theme Translation Files
    High · 7.2 CVE-2026-104418 >= 6.10.3, < 6.64.0 6.64.0
  8. Ghost: Stored XSS via File Uploads on Local Storage
    High · 7.3 CVE-2026-104411 >= 6.22.1, < 6.64.0 6.64.0
  9. Ghost: Cache-poisoning XSS in Ghost frontend via x-ghost-preview header
    Critical · 9.6 CVE-2026-53943 >= 4.0.0, < 6.37.0 6.37.0
  10. Ghost has incomplete CSRF protections around OTC use
    High · 7.5 CVE-2026-29784 >= 5.101.6, < 6.19.3 6.19.3
  11. Ghost Vulnerable to Remote Code Execution via Malicious Themes
    High · 7.6 CVE-2026-29053 >= 0.7.2, < 6.19.1 6.19.1
  12. Ghost has a SQL injection in Content API
    Critical · 9.4 CVE-2026-26980 >= 3.24.0, < 6.19.1 6.19.1
  13. Ghost vulnerable to XSS via malicious Portal preview links
    High · 8.8 CVE-2026-24778 >= 5.43.0, < 5.121.0, >= 6.0.0, < 6.15.0 5.121.0, 6.15.0
  14. Ghost has Staff Token permission bypass
    High · 8.1 CVE-2026-22595 >= 6.0.0, < 6.11.0, >= 5.105.0, < 5.130.6 6.11.0, 5.130.6
  15. Ghost has Staff 2FA bypass
    High · 8.1 CVE-2026-22594 >= 6.0.0, < 6.11.0, >= 5.105.0, < 5.130.6 6.11.0, 5.130.6
  16. Path Traversal in Ghost
    High · 7.5 CVE-2023-32235 < 5.42.1 5.42.1
  17. Ghost vulnerable to information disclosure of private API fields
    High · 7.5 CVE-2023-31133 < 5.46.1 5.46.1
  18. ghost vulnerable to unauthorized newsletter modification via improper access controls
    High · 8.5 CVE-2022-41654 >= 5.0.0, < 5.22.7, >= 4.46.0, < 4.48.8 5.22.7, 4.48.8
  19. Arbitrary file upload in Ghost this entry
    Critical · 9.8 CVE-2022-27139 <= 4.39.0 no fix
  20. Arbitrary file upload in Ghost
    Critical · 9.8 CVE-2022-28397 <= 4.42.0 no fix

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