DeutschShown in its original language — a full translation is planned for a future version.
Nextcloud (Contacts, Talk, Deck und Twofactor WebAuthn): Mehrere Schwachstellen
view advisory published 2025-12-07
Ein Angreifer kann mehrere Schwachstellen in Nextcloud ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen, um Dateien zu manipulieren, und um Sicherheitsvorkehrungen zu umgehen.
01
describes (4)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-66558US | medium4.3 | — | ||
Nextcloud Twofactor WebAuthn is the WebAuthn Two-Factor Provider for Nextcloud. Prior to 1.4.2 and 2.4.1, a missing ownership check allowed an attack to take-away a 2FA webauthn de… | ||||
| CVE-2025-66557US | medium4.3 | — | ||
Nextcloud Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. Prior to 1.14.6 and 1.15.2, a bug in the… | ||||
| CVE-2025-66556US | medium4.3 | — | ||
Nextcloud talk is a video & audio conferencing app for Nextcloud. Prior to 20.1.8 and 21.1.2, a participant with chat permissions was able to delete poll drafts of other participan… | ||||
| CVE-2025-66554US | medium5.4 | — | ||
Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. Prior to 5.5.4, 6.0.6, and 7.2.5, a malicious user was able to modify… | ||||
02
references
External citations — patches, advisories, analysis.
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