CVE-2026-105679

Ghost: Stored XSS via File Uploads on Local Storage

State
Published
Severity
7.3 High
Published
Oct 5, 2026
Updated
Oct 5, 2026
Reserved
Oct 5, 2026

Read the record on cve.org

Description

Ghost is a Node.js content management system. From 6.22.1 until 6.64.0, Ghost restricted the content type used to serve uploaded files to prevent browsers from executing them. On sites using the default local storage adapter, this restriction was not applied, so files uploaded by any staff user were served with a content type derived from their file extension. This could be used to host scripts on the site's domain, possibly resulting in compromise of other staff users' admin sessions. This issue is fixed in version 6.64.0.

Scores

CVSSScoreVectorSource
3.17.3 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:NGitHub_M

Weaknesses

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-434 Unrestricted Upload of File with Dangerous Type

Affected Products

ProductVersions
GhostTryGhost
  • >= 6.22.1, < 6.64.0Affected

References

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