CVE-2026-103271 json
Ghost 4.0.0 before 6.63.0 Restricted Content Bypass
published 2026-10-01 38 d ago modified 2026-10-09 30 d ago also BIT-ghost-2026-103271 , EUVD-2026-90664 , GHSA-rcx7-6m7p-xw5c
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
Ghost versions from 4.0.0 before 6.63.0 contain a content API vulnerability that allows unauthenticated visitors to access gated post content. Attackers can bypass content restrictions by directly querying the content API to retrieve restricted posts without authentication.
Patch / fix
- bitnami ghost 6.63.0
- TryGhost Ghost 6.63.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 34 d ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | ghost | >=4.0.0, <6.63.0 |
6.63.0 |
Affected products
- TryGhost Ghost
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/TryGhost/Ghost/security/advisories/GHSA-rcx7-6m7p-xw5c
vendor-advisory, web
-
vulncheck.com
/advisories/ghost-4.0.0-before-6.63.0-restricted-content-bypass
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-103271
web
Sources
- CVE List CVE-2026-103271
- NVD CVE-2026-103271
- OSV BIT-ghost-2026-103271
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.