CVE-2026-70596 json
Ghost: Cross-Site Scripting in Feature Image Captions
published 2026-08-05 3 mo ago modified 2026-10-24 15 d ago also BIT-ghost-2026-70596 , EUVD-2026-53391 , GHSA-pr22-p9rp-2cqv
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm ghost 6.54.1
- bitnami ghost 6.54.1
- ghost ghost 6.54.1
- github.com/TryGhost/Ghost@a8bea3a commit
- github.com/TryGhost/Ghost#29635 pull request
- github.com/TryGhost/Ghost/releases/tag/v6.54.1 release
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | ghost | >=4.9.0, <6.54.1 |
6.54.1 |
| bitnami | ghost | >=4.9.0, <6.54.1 |
6.54.1 |
Affected products
- TryGhost Ghost
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/TryGhost/Ghost/pull/29635
web
-
github.com
/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e
web
-
github.com
/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv
web
-
github.com
/TryGhost/Ghost/releases/tag/v6.54.1
web
-
github.com
/TryGhost/Ghost
package
-
nvd.nist.gov
/vuln/detail/CVE-2026-70596
web
Sources
- CVE List CVE-2026-70596
- GitHub Advisory GHSA-pr22-p9rp-2cqv
- NVD CVE-2026-70596
- OSV BIT-ghost-2026-70596
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.