Medium severity · published Aug 4, 2026
CVE-2026-70588
Ghost: Cross-Site Scripting in Universal Import
5.0
CVSS
0.4%
EPSS
No
On KEV
Description
Ghost is a Node.js content management system. From 5.26.0 until 6.54.1, the Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content. This issue is fixed in version 6.54.1.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:L
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
None
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GH
Ghost · TryGhost
>= 5.26.0, < 6.54.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-70588
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-70588
github.com
https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e
github.com
https://github.com/TryGhost/Ghost/pull/29635
github.com
https://github.com/TryGhost/Ghost/releases/tag/v6.54.1
github.com
https://github.com/TryGhost/Ghost/security/advisories/GHSA-2gx6-7gx2-wwcf
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