Riskcovery

CVE-2025-66556

Nextcloud talk allows participants to blindly delete poll drafts of other users by ID

State
Published
Severity
3.5 Low
Published
Dec 5, 2025
Updated
Dec 5, 2025
Reserved
Dec 4, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.13.5 LowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:NGitHub_M

Weaknesses

  • CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

ProductVersions
security-advisoriesnextcloud
  • < 20.1.8Affected
  • >= 21.0.0-beta.1, < 21.1.2Affected

References

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