CVE-2026-70588
Ghost: Cross-Site Scripting in Universal Import
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Ghost: Cross-Site Scripting in Universal Import
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.
- Record
CVE-2026-70588- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2026-52928
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.
- Record
EUVD-2026-52928- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-2gx6-7gx2-wwcf
Ghost: Cross-Site Scripting in Universal Import
Impact
The Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content.
Vulnerable versions
This vulnerability is present in Ghost from v5.26.0 up to v6.54.0.
Patches
v6.54.1 contains a fix for this issue.
How to update
For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.
If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.
Workarounds
If upgrading immediately is not possible, avoid using the Universal Import feature.
References
Ghost thanks meifukun for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email us at [email protected].
- Record
GHSA-2gx6-7gx2-wwcf- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-70588- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Ghost: Cross-Site Scripting in Universal Import
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.
- Record
CVE-2026-70588- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVGHSA-2gx6-7gx2-wwcf
Ghost: Cross-Site Scripting in Universal Import
Impact
The Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content.
Vulnerable versions
This vulnerability is present in Ghost from v5.26.0 up to v6.54.0.
Patches
v6.54.1 contains a fix for this issue.
How to update
For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.
If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.
Workarounds
If upgrading immediately is not possible, avoid using the Universal Import feature.
References
Ghost thanks meifukun for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email us at [email protected].
- Record
GHSA-2gx6-7gx2-wwcf- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVBIT-ghost-2026-70588 No score
Ghost: Cross-Site Scripting in Universal Import
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.
- Record
BIT-ghost-2026-70588- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-70588 is a medium vulnerability (CVSS 5.0) in Tryghost Ghost, published August 4, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. Fixed in ghost 6.54.1.
References
github.com/TryGhost/Ghost/security/advisories/GHSA-2gx6-7gx2-wwcf
nvd.nist.gov/vuln/detail/CVE-2026-70588