EUVD-2026-52974
GHSA-cj62-hvv2-2q5h
Severity by source
AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L
Full admin credentials required (PR:H); file write crosses app boundary warranting S:C; no data read so C:N; overwrite impact is partial, not total (I:L, A:L).
Primary rating from Vendor (https://github.com/TryGhost/Ghost).
CVSS VectorVendor: https://github.com/TryGhost/Ghost
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L
Lifecycle Timeline
2DescriptionCVE.org
Impact
An Administrator-level user could remotely overwrite certain files on the filesystem leading to integrity and availability issues.
Vulnerable versions
This vulnerability is present in Ghost from 1.20.1 up to v6.54.0.
Patches
v6.54.1 contains a fix for this issue.
How to update
For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.
If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.
Workarounds
If upgrading immediately is not possible, set *disableJSBackups* to "true" by running:
$ ghost config set disableJSBackups true
$ ghost restartReferences
Ghost thanks Jorian Woltjer of Aikido Security, Mitchell Benjamin of Revamp Studio, and meifukun for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email Ghost at [security@ghost.org](mailto:security@ghost.org).
AnalysisAI
Path traversal in Ghost's database backup export endpoint allows Administrator-level users to remotely overwrite arbitrary files on the server filesystem, affecting all Ghost installations from version 1.20.1 through v6.54.0 (npm package pkg:npm/ghost). An authenticated admin can supply a crafted export filename containing path separators (e.g., '../../etc/crontab') when triggering a database export, causing Ghost to write the JSON export blob outside the intended directory to an attacker-controlled path. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation strictly requires a valid Ghost Administrator-level account (PR:H per CVSS); lower-privileged Ghost roles such as Staff, Author, or Contributor cannot access the database export endpoint. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L scoring 5.5 accurately reflects the threat profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Ghost to v6.54.1 immediately; this is the vendor-confirmed fixed release available at https://github.com/TryGhost/Ghost/releases/tag/v6.54.1. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
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External POC / Exploit Code
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