BIT-nextcloud-2025-66510

vendorUSosv

Nextcloud Server Contacts Search allowed users to retrieve contact information of other users beyond their contact list

view advisory published 2026-07-13Licence: per source

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users (emails, names, identifiers) without proper access control. This allows an authenticated user to retrieve information about accounts that are not related or added as contacts.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2025-66510USmedium4.9—
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3,…
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references

External citations — patches, advisories, analysis.

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