CVE-2018-8923

Severity: medium (CVSS 5.4 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-06-05 · updated 2026-06-17
Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in Attachment Preview in Synology File Station before 1.1.4-0122 allows remote authenticated users to inject arbitrary web script or HTML via malicious attachments.

Affected products

Synology File Station: before 1.1.4-0122 — fixed in 1.1.4-0122

How to fix

Upgrade to a fixed version: Synology File Station 1.1.4-0122. Check the vendor advisory for mitigations.

References

https://www.synology.com/zh-tw/support/security/Synology_SA_18_09
https://www.synology.com/zh-tw/support/security/Synology_SA_18_09

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