Security Advisory

CVE-2025-66554

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2025-12-05 17:50:59

Last updated 2025-12-08 19:51:03

Assigner GitHub_M

CVSS score 3.5

State PUBLISHED

Description

Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. Prior to 5.5.4, 6.0.6, and 7.2.5, a malicious user was able to modify their organisation and title field to load additional CSS files. Javascript and other options were correctly blocked by the content security policy of the Nextcloud Server code. This vulnerability is fixed in 5.5.4, 6.0.6, and 7.2.5.

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