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CVE-2025-66556

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CVE-2025-66556

Published: Dec 5, 2025

Modified: Dec 5, 2025

PUBLISHED

CVSS v3.1

3.5

LOW

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.

VendorProductVersions

nextcloud

security-advisories

affected
< 20.1.8
affected
>= 21.0.0-beta.1, < 21.1.2

Weaknesses (CWE)

CWE-639

CVSS v3.1 Details

CVSS v3.1 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

References

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