What is CVE-2018-8913?

CVE-2018-8913 is a high-severity vulnerability in Synology Web Station, classified under CWE-756. CVSS score: 7.1/10. Published 2019-04-01.

How severe is CVE-2018-8913?

High severity. CVSS v3 base score is 7.1 out of 10.

Open Redirect in Synology Web Station

CVE-2018-8913

Missing custom error page vulnerability in Synology Web Station before 2.1.3-0139 allows remote attackers to conduct phishing attacks via a crafted URL.

Published 2019-04-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.011 (64.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Synology Web Station — versions unspecified
Synology Web Station

Weakness classification (CWE)

References

www.synology.com/security/advisory/Synology_SA_18_29 (Vendor Advisory)

Frequently asked questions

What is CVE-2018-8913?: CVE-2018-8913 is a high-severity vulnerability in Synology Web Station, classified under CWE-756. CVSS score: 7.1/10. Published 2019-04-01.
How severe is CVE-2018-8913?: High severity. CVSS v3 base score is 7.1 out of 10.