CVE-2026-70588 PUBLISHED

Ghost: Cross-Site Scripting in Universal Import

Assigner: GitHub_M
Reserved: 04.08.2026 Published: 04.08.2026 Updated: 04.08.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:L
CVSS Score: 5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	None
Privileges Required	High	Integrity Impact	High
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	TryGhost
Product	Ghost
Versions	Version >= 5.26.0, < 6.54.1 is affected

References

https://github.com/TryGhost/Ghost/security/advisories/GHSA-2gx6-7gx2-wwcf
https://github.com/TryGhost/Ghost/pull/29635
https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e
https://github.com/TryGhost/Ghost/releases/tag/v6.54.1

Problem Types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE