Vulnerability · Published Oct 5, 2026 · Assigned by GitHub_M

CVE-2026-105651Ghost: Stored XSS via Bookmark Card Images

High 7.3

In plain English

A high-severity cross-site scripting in Ghost from TryGhost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.3%top 76.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	ghost	6.64.0	GHSA-347q-26qq-h2p6

Affected products (as reported)

Vendor	Product	Versions
TryGhost	Ghost	>= 5.94.0, < 6.64.0

Weakness: CWE-79, CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

References

https://github.com/TryGhost/Ghost/security/advisories/GHSA-347q-26qq-h2p6 x_refsource_CONFIRM
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 x_refsource_MISC