EUVD-2025-201458

| CVE-2025-66556 LOW
2025-12-05 [email protected]
3.5
CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

4
Analysis Generated
Mar 15, 2026 - 17:08 vuln.today
EUVD ID Assigned
Mar 15, 2026 - 17:08 euvd
EUVD-2025-201458
Patch Released
Mar 15, 2026 - 17:08 nvd
Patch available
CVE Published
Dec 05, 2025 - 18:15 nvd
LOW 3.5

Description

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.

Analysis

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.

Technical Context

This vulnerability is classified as Authorization Bypass Through User-Controlled Key (CWE-639).

Affected Products

Affected products: Nextcloud Talk

Remediation

A vendor patch is available. Apply it as soon as possible and verify the fix.

Priority Score

18
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +18
POC: 0

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EUVD-2025-201458 vulnerability details – vuln.today

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