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-2025-66547Nextcloud Server users can modify tags on files that do not belong to them
Descripción
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 31.0.1, non-privileged users can modify tags on files they should not have access to via bulk tagging. This vulnerability is fixed in 31.0.1.
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 | 31.0.0 – < 31.0.1 | |
| nextcloud | security-advisories | < 31.0.1 |
Referencias y parches
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hq6c-r898-fgf2 PatchVendor Advisory
- https://github.com/nextcloud/server/issues/51247 Issue Tracking
- https://github.com/nextcloud/server/pull/51288 Issue Tracking
- https://github.com/nextcloud/server/commit/b44f1568f2dc97c746281d99e2342ad679e3d8a9 Patch
- https://hackerone.com/reports/3040887 Vendor Advisory
Coincidencias CPE (NVD) (2)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*≥ 31.0.0 < 31.0.1cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*≥ 31.0.0 < 31.0.1