CVE-2026-40534

State: Published
Severity: 5.4 Medium
Published: Sep 18, 2026
Updated: Sep 18, 2026
Reserved: Apr 14, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	synology

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
DiskStation Manager (DSM)Synology	7.3 to before 7.3.2-86009-2Affected 7.2.2 to before 7.2.2-72806-7Affected 7.2.1 to before 7.2.1-69057-10Affected before 7.2.1Unknown

References

Synology-SA-26:06 DSMvendor-advisory

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