CVE-2025-13167
Analyzed Analyzed - Analysis Complete
Cross-Site Scripting in Synology Contacts

Publication date: 2026-05-27

Last updated on: 2026-05-28

Assigner: Synology Inc.

Description
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.
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Meta Information
Published
2026-05-27
Last Modified
2026-05-28
Generated
2026-06-16
AI Q&A
2026-05-27
EPSS Evaluated
2026-06-15
NVD
CVE-2025-13167
EUVD
EUVD-2025-209954
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
synology contacts to 1.0.10-20659 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability is a Cross-site Scripting (XSS) issue found in the contact functionality of Synology Contacts before version 1.0.10-20659. It occurs due to improper neutralization of input during web page generation, which allows remote authenticated users to exploit the system.

Specifically, attackers can read or write certain files containing non-sensitive information through unspecified vectors by leveraging this vulnerability.

Compliance Impact

The provided information does not specify how this vulnerability impacts compliance with common standards and regulations such as GDPR or HIPAA.

Impact Analysis

The vulnerability allows remote authenticated users to read or write specific files that contain non-sensitive information. This could lead to unauthorized access or modification of some data within the Synology Contacts application.

The CVSS score of 5.4 indicates a moderate severity, meaning the impact is significant but not critical. The attack requires network access, low attack complexity, and user interaction.

Mitigation Strategies

The immediate step to mitigate this vulnerability is to apply the security update released by Synology for the Synology Contacts package.

  • Upgrade Synology Contacts to version 1.0.10-20659 or later.

No other mitigation steps beyond applying the update are provided.

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