BIT-ghost-2026-53943

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/ghost/BIT-ghost-2026-53943.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-ghost-2026-53943
Aliases
Published
2026-06-30T23:39:17.098Z
Modified
2026-07-01T22:26:11.695985301Z
Summary
Ghost: Cache-poisoning XSS in Ghost frontend via x-ghost-preview header
Details

Ghost is a Node.js content management system. From until 6.37.0, when Ghost is behind a shared caching layer that results in cached content being shared between different visitors, an unauthenticated user could send an x-ghost-preview header that altered the rendered frontend response. In affected cache configurations, that response could be stored and served to subsequent visitors requesting the same page, allowing cache poisoning of request-specific preview output. When running Ghost's frontend and admin panel on the same domain this could be used to take over staff user accounts. When running these on different domains staff accounts have no exposure. This vulnerability is fixed in 6.37.0.

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

Affected packages

Bitnami / ghost

Package

Name
ghost
Purl
pkg:bitnami/ghost

Severity

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

Affected ranges

Type
SEMVER
Events
Introduced
4.0.0
Fixed
6.37.0

Database specific

source
"https://github.com/bitnami/vulndb/tree/main/data/ghost/BIT-ghost-2026-53943.json"