Member account takeover
Impact
An error in the implementation of the member email change functionality allows unauthenticated users to change the email address of arbitrary member accounts to one they control by crafting a request to the relevant API endpoint, and validating the new address via magic link sent to the new email address.
Ghost(Pro) has already been patched. Self-hosters are impacted if running Ghost a version between 3.18.0 and 4.15.0 with members functionality enabled.
Patches
Fixed in 4.15.1, all 4.x sites should upgrade as soon as possible. Fixed in 3.42.6, all 3.x sites should upgrade as soon as possible.
Workarounds
The patch in 4.15.1 and 3.42.6 adds a new authenticated endpoint for updating member email addresses. Updating Ghost is the quickest complete solution.
As a workaround, if for any reason you cannot update your Ghost instance, you can block the POST /members/api/send-magic-link/ endpoint, which will also disable member login and signup for your site.
For more information
If you have any questions or comments about this advisory:
- Email us at security@ghost.org
Software afectado
Haz clic en una tecnología para ver todas sus vulnerabilidades.
| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | ghost | >= 3.18.0, < 3.42.6, >= 4.0.0, < 4.15.1 | 3.42.6, 4.15.1 |
Referencias
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N- Debilidad (CWE)
-- Plataforma
- npm
- Paquete
ghost- Publicada
- 23.09.2021
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-65p7-pjj8-ggmr - CC BY 4.0
Historial de vulnerabilidades: ghost
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 61
- Primera → última
- 04.2021 10.2026
- Sin corrección
- 3
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 4
- Alta 16
- Media 38
- Baja 3
Divulgaciones por año
- 2021: 5
- 2022: 4
- 2023: 3
- 2024: 3
- 2025: 1
- 2026: 45
-
Member account takeover esta entrada
Identifica las vulnerabilidades de tu aplicación
Con la integración de DockRay y el inventario de software activado, DockRay compara las versiones notificadas de los componentes con las vulnerabilidades conocidas y avisa de las coincidencias confirmadas. La cobertura depende de la tecnología compatible y de los avisos disponibles.