CVE-2026-105643Ghost: Stored XSS via Embed Card Previews
Updated under an hour ago ()
Does this affect you?
It affects TryGhost Ghost. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.27%, higher than 18% of scored CVEs.
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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.
- CVSS
- 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-79, CWE-653
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.27% (percentile 18)
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Oct 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TryGhost Ghost tryghost:ghost (from the name) | from 6.34.0, < 6.67.0 | CNA record |
References
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-69qc-f5m6-889cx-refsource-confirm
- https://github.com/penpot/penpot/security/advisories/GHSA-qvq5-c536-pmx8
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.