Ghost: Cross-Site Scripting in Feature Image Captions
Published Aug 5, 2026
4.3
MEDIUMCVSS 3.1
EPSS 0.32%
Description
Ghost is a Node.js content management system. From 4.9.0 until 6.54.1, an input validation issue allowed any staff user to create a post with content in feature_image_caption that could be used to hijack another staff user's Ghost Admin session, resulting in privilege escalation. This issue is fixed in 6.54.1.
Affected products
-
- Version >= 4.9.0, < 6.54.1StatusaffectedConstraints-
- Version
No data.
No data.
No Red Hat product state for this CVE.
ghost
npm
Introduced 4.9.0 Fixed 6.54.1
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | ghost | 4.9.0 | 6.54.1 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Aug 5, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Aug–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.32% (0.00318) | 22.48th | v5 (v2026.06.15) |
| Aug 6, 2026 | 0.18% (0.00180) | 7.69th | v5 (v2026.06.15) |
References (5)
- https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e x_refsource_MISC
- https://github.com/TryGhost/Ghost/pull/29635 x_refsource_MISC
- https://github.com/TryGhost/Ghost/releases/tag/v6.54.1 x_refsource_MISC
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv x_refsource_CONFIRM
- https://github.com/advisories/GHSA-pr22-p9rp-2cqv Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e | x_refsource_MISC | |
| https://github.com/TryGhost/Ghost/pull/29635 | x_refsource_MISC | |
| https://github.com/TryGhost/Ghost/releases/tag/v6.54.1 | x_refsource_MISC | |
| https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv | x_refsource_CONFIRM | |
| https://github.com/advisories/GHSA-pr22-p9rp-2cqv | Advisory |
Change history (0)
No recorded changes yet.