What is CVE-2025-13167?

CVE-2025-13167 is a medium-severity vulnerability in Synology Contacts, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-05-27.

How severe is CVE-2025-13167?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Synology Contacts

CVE-2025-13167

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 containi…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (4.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Synology Contacts
Synology Diskstation_manager — versions 7.2.1, 7.2.2, 7.3
Synology Contacts

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@synology.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-13167?: CVE-2025-13167 is a medium-severity vulnerability in Synology Contacts, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-05-27.
How severe is CVE-2025-13167?: Medium severity. CVSS v3 base score is 5.4 out of 10.