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.
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Solution
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References
History
Wed, 24 Jun 2026 19:30:00 +0000
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ssvc
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Wed, 24 Jun 2026 18:45:00 +0000
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| Description | 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. | |
| Title | Ghost: Cache-poisoning XSS in Ghost frontend via x-ghost-preview header | |
| Weaknesses | CWE-524 | |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-24T18:48:56.416Z
Reserved: 2026-06-11T15:50:01.280Z
Link: CVE-2026-53943
Updated: 2026-06-24T18:41:08.971Z
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OpenCVE Enrichment
Updated: 2026-06-24T19:45:05Z
Weaknesses