GHSA-69qc-f5m6-889c
Suggest an improvement- Source
- https://github.com/advisories/GHSA-69qc-f5m6-889c
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-69qc-f5m6-889c/GHSA-69qc-f5m6-889c.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-69qc-f5m6-889c
- Aliases
- Related
- Published
- 2026-10-07T20:43:05Z
- Modified
- 2026-10-07T21:00:04Z
- Severity
-
- 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- Ghost: Stored XSS via Embed Card Previews
- Details
-
Impact
Embed cards in the Ghost editor could be used to bypass the fix for GHSA-8vhf-xxpj-4qrg. Any staff user, including Contributors, could store scripts in post content that ran when another staff user opened the post in the editor, possibly resulting in compromise of that user's admin session.
Self-hosted sites should leave the new
security.embedPreviewUrlconfig option at its default.Vulnerable versions
This vulnerability is present in Ghost from v6.34.0 up to v6.65.0.
Patches
v6.67.0 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.
References
Ghost thanks DONG2209 (Dong Nguyen) and Pedro Pinho for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email us at security@ghost.org.
- Database specific
{ "cwe_ids": [ "CWE-653", "CWE-79" ], "github_reviewed": true, "github_reviewed_at": "2026-10-07T20:43:05Z", "nvd_published_at": "2026-10-05T19:17:18Z", "severity": "HIGH" }- References
Affected packages
npm / ghost
Package
- Name
- ghost
- View open source insights on deps.dev
- Purl
- pkg:npm/ghost