CVE-2025-66554 - Nextcloud Contacts vulnerable to Stored XSS in contacts app via organisation and...

CVE ID : CVE-2025-66554 Published : Dec. 5, 2025, 6:15 p.m. | 47 minutes ago 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. Severity: 3.5 | LOW Visit the link for more details, such as CVSS details, affected products, timeline, and more...

Source: Telegram CVE Monitor