CVE-2026-13623

Published Sep 18, 2026 CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed
Description
An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Theme API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users with administrator privileges to read or write limited files.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Synology
Synology diskstation Manager
Vendors & Products Synology
Synology diskstation Manager
Type Values Removed Values Added
Title Cross‑Site Scripting Vulnerability in Synology DSM Theme API
Type Values Removed Values Added
Title Cross‑Site Scripting Vulnerability in Synology DSM Theme API
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Theme API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users with administrator privileges to read or write limited files.
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
synology
Published
Updated
Sep 18, 2026, 11:28 AM
Reserved
Jun 29, 2026, 9:42 AM
Status
Awaiting Analysis
Published
Sep 18, 2026, 9:16 AM
Modified
Sep 18, 2026, 7:07 PM