CVE-2026-9548CWE-79cross-site-scripting

CVE-2026-9548

Medium · published August 28, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
17.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00268 · 17.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-08-28T12:16Z
References (1)
https://www.synology.com/en-global/security/advisory/Synology_SA_26_10 · [email protected]
EPSS history
Timeline
  • 28 AUG 07:08Z
    An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in extract domain in Synology Chat Server before…
    cvelistv5