CVE-2026-104413CWE-79cross-site-scripting

CVE-2026-104413

High · published October 2, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
16.2
In the wild
Unconfirmed
What it is

Ghost from 5.94.0 before 6.64.0 contains a stored cross-site scripting vulnerability that allows staff users, including Contributors, to host arbitrary HTML by abusing bookmark card image fetching. Attackers can create bookmark cards that store non-image files from external websites as icons or thumbnails to compromise other staff users' admin sessions.

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
8.5 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00255 · 16.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-10-02T16:17Z
References (2)
https://github.com/TryGhost/Ghost/security/advisories/GHSA-347q-26qq-h2p6 · [email protected]https://www.vulncheck.com/advisories/ghost-5.94.0-before-6.64.0-stored-xss-via-bookmark-card-images · [email protected]
EPSS history
Timeline
  • 04 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 02 OCT 11:37Z
    Ghost 5.94.0 before 6.64.0 Stored XSS via Bookmark Card Images
    cvelistv5