IP-DB.com
Türkçe English Deutsch Español
Anmelden API-Schlüssel holen
Ohne Score

CVE-2018-3761

Nextcloud Nextcloud Server Veröffentlicht: (vor 8 Jahren)

Beschreibung

Nextcloud Server before 12.0.8 and 13.0.3 suffer from improper authentication on the OAuth2 token endpoint. Missing checks potentially allowed handing out new tokens in case the OAuth2 client was partly compromised.

Schwachstellentyp (CWE): CWE-287

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

HerstellerProduktVersionen
Nextcloud Nextcloud Server <13.0.3, <12.0.8

Referenzen und Patches

Neue CVEs im selben Produkt — Nextcloud

7.5Hoch
CVE-2026-77167
Nextcloud server

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…

5.3Mittel
CVE-2026-77172
Nextcloud Server

App passwords were allowed to bypass password confirmation on sensitive endpoints.

4.3Mittel
CVE-2026-82984
Nextcloud Server

When a team was configured as "visible to everyone", the web UI correctly blocked non-members from viewing the team ("You are not a member of ..."), but the resources API endpoint could still be called directly, allowing any authenticated non-member to enumer…

6.5Mittel
CVE-2026-77165
Nextcloud Server

File owners were unable to unlock TYPE_TOKEN locks placed by other users, leaving files permanently locked with no recovery path outside of the database.

3.1Niedrig
CVE-2026-68493
Nextcloud Server

After guessing a 62^15 complex unique identifier, a malicious logged in user was able to retrieve a list of memberships for a circle they are not a member of.

6.2Mittel
CVE-2026-77164
Nextcloud Server

Circles' remote-instance signature verification fetches the attacker-supplied keyId URL before trust in the remote instance is established, and explicitly allows local/private addresses for this request, bypassing Nextcloud's core SSRF protections. The public…