CVE-2026-104414CWE-79cross-site-scripting

CVE-2026-104414

High · published October 2, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
19.3
In the wild
Unconfirmed
What it is

Ghost from 2.5.0 before 6.64.0 contains a stored cross-site scripting vulnerability that allows attackers to inject untrusted scripts into post content via oEmbed photo responses. Attackers can host malicious oEmbed photo responses so that embedding their URL stores scripts that run in the Ghost editor, published site, and newsletter emails, compromising staff admin sessions.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00278 · 19.3th 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-v3xr-g6p2-fvgv · [email protected]https://www.vulncheck.com/advisories/ghost-from-2.5.0-before-6.64.0-stored-xss-via-oembed-photo-responses · [email protected]
EPSS history
Timeline
  • 04 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 02 OCT 11:37Z
    Ghost from 2.5.0 before 6.64.0 Stored XSS via oEmbed Photo Responses
    cvelistv5