CVE-2025-13167: Synology Contacts

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in contact functionality in Synology Contacts before 1.0.10-20659 allows remote authenticated users to read or write specific files containing non-sensitive information via unspecified vectors.

Affected products

• Synology Contacts: before 1.0.10-20659 (fixed in 1.0.10-20659)

Published 2026-05-27. Last modified 2026-10-07.