CVE-2026-9548

MEDIUM CVSS 3.1: 6.5 EPSS 0.24%
Updated Sep 01, 2026
Synology
Parameter Value
CVSS 6.5 (MEDIUM)
Affected Versions before 2.4.5
Type CWE-79 (Cross-Site Scripting (XSS))
Vendor Synology
Public PoC No

An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in extract domain in Synology Chat Server before 2.4.5-22148 allows remote authenticated users, via a UI interaction, to read or write restricted files and conduct limited denial-of-service attacks in DSM.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v3.1

Vulnerable Products

synology:synology chat server