CVE-2026-40534
published 2026-09-18CVE-2026-40534: An improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Video API in Synology DiskStation Manager (DSM) before…
PriorityP427medium5.4CVSS 3.1
AVNACLPRLUIRSCCLILAN
EPSS
0.20%
10.7th percentile
An improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Video API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote authenticated users to read or write limited files when the player is launched.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| synology | diskstation_manager | >= 7.2.1 < 7.2.1-69057-10 | 7.2.1-69057-10 |
| synology | diskstation_manager | >= 7.2.2 < 7.2.2-72806-7 | 7.2.2-72806-7 |
| synology | diskstation_manager | >= 7.3 < 7.3.2-86009-2 | 7.3.2-86009-2 |
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VulDB
Synology DiskStation Manager up to 7.2.0/7.2.2-72806-6/7.3.2-86009-1 Video API cross site scripting (EUVD-2026-82789 / WID-SEC-2026-1125)
vuldb·2026-09-20·CVSS 5.4
CVE-2026-40534 [MEDIUM] Synology DiskStation Manager up to 7.2.0/7.2.2-72806-6/7.3.2-86009-1 Video API cross site scripting (EUVD-2026-82789 / WID-SEC-2026-1125)
A vulnerability classified as problematic has been found in Synology DiskStation Manager up to 7.2.0/7.2.2-72806-6/7.3.2-86009-1. Affected by this issue is some unknown functionality of the component Video API. The manipulation leads to cross site scripting.
This vulnerability is documented as CVE-2026-40534. The attack can be initiated remotely. There is not any exploit available.
It is recommended to upgrade the affected component.
GHSA
An improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Video API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-
ghsa_unreviewed·2026-09-18
CVE-2026-40534 [MEDIUM] CWE-79 An improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Video API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-
An improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Video API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote authenticated users to read or write limited files when the player is launched.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-09-18
Published