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CVE-2025-66556
Good to know:
Date: December 5, 2025
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 participants within the conversation based on their numeric ID. This vulnerability is fixed in 20.1.8 and 21.1.2.
Severity Score
Related Resources (6)
Severity Score
Weakness Type (CWE)
Authorization Bypass Through User-Controlled Key
CWE-639Top Fix
Upgrade Version
Upgrade to version https://github.com/nextcloud/spreed.git - v20.1.8;https://github.com/nextcloud/spreed.git - v21.1.2
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | LOW |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | LOW |
| Availability (A): | NONE |