CVE-2026-13623: XSS
Published Sep 18, 2026
·Updated
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.
Affected Software
1 affected component
Synology DiskStation Manager (DSM)<7.2.1-69057-12, <7.2.2-72806-9, <7.3.2-86009-4, <7.4-90075
Event History
Sep 18, 2026
CVE Published
via MITRE·08:22 AM
Data Sourced
via MITRE·08:22 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Who can exploit this vulnerability?
Exploitation requires remote authentication and administrator privileges in DSM. User interaction is also required.
2
Which DSM releases need to be remediated?
DSM versions before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4, and 7.4-90075 are affected.
3
What access could an attacker gain through successful exploitation?
A successful attacker can read or write limited files. The provided information does not indicate that arbitrary file access or code execution is possible.