Abusing the federated share endpoint, an attacker can write arbitrary rows into the oc_share_external database table. These rows persist indefinitely — there is no automatic cleanup mechanism. Three distinct denial-of-service conditions follow from this write…
4.3Media
CVE-2025-64011
Descripción
Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference (IDOR) in the /core/preview endpoint. Any authenticated user can access previews of arbitrary files belonging to other users by manipulating the fileId parameter. This allows unauthorized disclosure of sensitive data, such as text files or images, without prior sharing permissions.
Debilidad (CWE):
CWE-639
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| nextcloud | nextcloud server | 30.0.0 |
Referencias y parches
- https://drive.google.com/file/d/1eD3PN-u1caZYgGH96XHmJ7h_OBXEAHW4/view?usp=sharing Exploit
- https://nextcloud.com Product
- https://gist.github.com/tarekramm/586dfe2d113fedfee6d71182570fc090 ExploitThird Party Advisory
Coincidencias CPE (NVD) (1)
cpe:2.3:a:nextcloud:nextcloud_server:30.0.0:-:*:*:*:*:*:*