CVE-2026-105643 · GHSA-69qc-f5m6-889c
Ghost: Stored XSS via Embed Card Previews
- Risk score
- 52/100
- CVSS
- 7.3 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 5 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Ghost is a Node.js content management system. From version 6.34.0 until 6.67.0, embed cards in the Ghost editor could bypass protections against stored cross-site scripting. Any staff user, including Contributors, could store scripts in post content that ran when another staff user opened the post in the editor, poten…
- Affected
- ghost (npm) >= 6.34.0, < 6.67.0
- Fix
- Upgrade ghost to 6.67.0 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.3 high
- On your watchlist: npm
Affected packages
| Package | Ecosystem | Vulnerable | Fixed in |
|---|---|---|---|
| ghost | npm | >= 6.34.0, < 6.67.0 | 6.67.0 |
References
Original description
Ghost is a Node.js content management system. From version 6.34.0 until 6.67.0, embed cards in the Ghost editor could bypass protections against stored cross-site scripting. Any staff user, including Contributors, could store scripts in post content that ran when another staff user opened the post in the editor, potentially compromising that user’s admin session. Self-hosted sites should leave the new security.embedPreviewUrl configuration option at its default value. This issue is fixed in version 6.67.0.
Last activity 5 Oct 2026. Patch Forecast updates every hour.