CVE-2026-105650: Ghost: Stored XSS via oEmbed Photo Responses

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-05 · updated 2026-10-06
Weakness: CWE-79

Description

Ghost is a Node.js content management system. From 2.1.0 until 6.64.0, embedding a URL from an attacker-controlled website could result in untrusted scripts being stored in post content. These scripts could run in the Ghost editor, on the published site, and in newsletter emails, possibly resulting in compromise of a staff user's admin session. This issue is fixed in version 6.64.0.

Affected products

TryGhost Ghost: from 2.5.0, < 6.64.0

References

https://github.com/TryGhost/Ghost/commit/d23d552e257e2696c60293bc5cd7898a49d6bd1f
https://github.com/TryGhost/Ghost/pull/30763
https://github.com/TryGhost/Ghost/releases/tag/v6.64.0
https://github.com/TryGhost/Ghost/security/advisories/GHSA-v3xr-g6p2-fvgv

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