CVE-2025-66556

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CVSS 3.1

4.3 medium

EPSS

<1%p17

Published

Dec 5, 2025 (Dec 5, 2025)

Modified

Jun 17, 2026

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.

Vendors: nextcloud
Products: talk
Weakness: CWE-639
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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