High severity · published Oct 5, 2026
CVE-2026-105651
Ghost: Stored XSS via Bookmark Card Images
7.3
CVSS
0.3%
EPSS
No
On KEV
Description
Ghost is a Node.js content management system. From 5.94.0 until 6.64.0, when creating a bookmark card, Ghost could store non-image files fetched from an external website as bookmark icons or thumbnails. This allowed any staff user, including Contributors, to host arbitrary HTML on the site's domain, possibly resulting in compromise of other staff users' admin sessions. This issue is fixed in version 6.64.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GH
Ghost · TryGhost
>= 5.94.0, < 6.64.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105651
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-105651
x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/security/advisories/GHSA-347q-26qq-h2p6
x_refsource_MISC
https://github.com/TryGhost/Ghost/issues/30761
x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/b41fe3f2c399cef058e6b487782a0b2263e86c03
x_refsource_MISC
https://github.com/TryGhost/Ghost/releases/tag/v6.64.0
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