CVE-2026-103266 json
Ghost 5.2.0 before 6.62.0 Unauthenticated Stripe Checkout Account Modification
published last mo. modified last mo. also BIT-ghost-2026-103266 , EUVD-2026-90660 , GHSA-qppx-rw6v-xjqf
- cvss
- 7.1
- 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 22%
- public exploits
- 0
- none known
Summary
Ghost versions 5.2.0 through versions prior to 6.62.0 allow a remote attacker, without authentication, to abuse the Stripe Checkout flow to attach a paid subscription to an existing member, modify that member's name, and inject content into newsletters sent to the member. Depending on the recipient's email client, the injected content may be rendered, resulting in HTML injection or cross-site scripting (XSS).
Patch / fix
- bitnami ghost 6.62.0
- TryGhost Ghost 6.62.0
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/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 | >=5.2.0, <6.62.0 |
6.62.0 |
Affected products
- TryGhost Ghost
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/TryGhost/Ghost/security/advisories/GHSA-qppx-rw6v-xjqf
vendor-advisory, web
-
vulncheck.com
/advisories/ghost-5.2.0-before-6.62.0-unauthenticated-stripe-checkout-account-modification
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-103266
web
Sources
- CVE List CVE-2026-103266
- NVD CVE-2026-103266
- OSV BIT-ghost-2026-103266
Fencer Intel 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.