CVE-2026-105651CWE-434CWE-79cross-site-scriptingunrestricted-file-upload

CVE-2026-105651

High · published October 6, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
21.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00302 · 21.8th percentile
Weaknesses
CWE-434 · Unrestricted Upload of File with Dangerous Type; CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-10-06T00:17Z
References (4)
https://github.com/TryGhost/Ghost/commit/b41fe3f2c399cef058e6b487782a0b2263e86c03 · [email protected]https://github.com/TryGhost/Ghost/issues/30761 · [email protected]https://github.com/TryGhost/Ghost/releases/tag/v6.64.0 · [email protected]https://github.com/TryGhost/Ghost/security/advisories/GHSA-347q-26qq-h2p6 · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 05 OCT 19:09Z
    Ghost: Stored XSS via Bookmark Card Images
    cvelistv5
  • 05 OCT 19:09Z
    Ghost: Stored XSS via Bookmark Card Images
    cvelistv5