CVE-2026-104413 Ghost - Stored XSS

Ghost 5.94.0 < 6.64.0 contains a stored XSS caused by abuse of bookmark card image fetching allowing staff users to host arbitrary HTML, letting attackers compromise admin sessions, exploit requires attacker to be a staff user.

CVSS base score 7.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.26% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Published
2 October 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Upgrade to version 6.64.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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