CVE-2026-53943
1 advisory.
npm/ghost CVE-2026-53943: critical 9.6, EPSS 0.45%
Ghost: Cache-poisoning XSS in Ghost frontend via x-ghost-preview header
Action: Upgrade ghost to 6.37.0 or later.
npm i ghost@6.37.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 4.0.0 | 6.37.0 | - |
Fixed versions
| 6.37.0 |
Sources
- osv: GHSA-62q6-4hv4-vjrw
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-62q6-4hv4-vjrw
- https://nvd.nist.gov/vuln/detail/CVE-2026-53943
- https://github.com/TryGhost/Ghost
CVE-2026-53943 · published · modified · JSON