BIT-ghost-2026-53948

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/ghost/BIT-ghost-2026-53948.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-ghost-2026-53948
Aliases
Published
2026-06-30T23:39:24.628Z
Modified
2026-07-08T08:11:31.452236613Z
Summary
Ghost: File Upload Content-Type Spoofing
Details

Ghost is a Node.js content management system. From 6.19.4 until 6.21.1, insufficient validation of the client-supplied Content-Type on Ghost's Admin API file upload endpoint allowed uploaded files to be served from the site with an attacker-chosen content type on S3/GCS storage backends. On installations that serve uploaded files from the same origin as the site, this could have been used to facilitate stored cross-site scripting against site visitors or staff. This vulnerability is fixed in 6.21.1.

Database specific
{
    "cpes": [
        "cpe:2.3:a:ghost:ghost:*:*:*:*:*:node.js:*:*"
    ],
    "severity": "Medium"
}
References

Affected packages

Bitnami / ghost

Package

Name
ghost
Purl
pkg:bitnami/ghost

Severity

  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
6.19.4
Fixed
6.21.1

Database specific

source
"https://github.com/bitnami/vulndb/tree/main/data/ghost/BIT-ghost-2026-53948.json"