What is CVE-2018-8921?

CVE-2018-8921 is a medium-severity vulnerability in Synology Drive, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2018-06-01.

How severe is CVE-2018-8921?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XSS in Synology Drive

CVE-2018-8921

Cross-site scripting (XSS) vulnerability in File Sharing Notify Toast in Synology Drive before 1.0.2-10275 allows remote authenticated users to inject arbitrary web script or HTML via the malicious file name.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (53.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

Affected products

Synology Drive — versions unspecified
Synology Drive_server

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@synology.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2018-8921?: CVE-2018-8921 is a medium-severity vulnerability in Synology Drive, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2018-06-01.
How severe is CVE-2018-8921?: Medium severity. CVSS v3 base score is 6.5 out of 10.