What is CVE-2018-0560?

CVE-2018-0560 is a medium-severity vulnerability in Hatena Bookmark, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2018-04-16.

How severe is CVE-2018-0560?

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

Improper input validation in Hatena Bookmark

CVE-2018-0560

Hatena Bookmark App for iOS Version 3.0 to 3.70 allows remote attackers to spoof the address bar via vectors related to URL display.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2018-04-16 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.010 (60.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: -0.000

Affected products

Hatena Bookmark
Hatena Co.,ltd. Bookmark App For iOS — versions Version 3.0 to 3.70

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

bookmark.hatenastaff.com/entry/2018/04/09/170000 (Vendor Advisory)
jvn.jp/en/jp/JVN77753476/index.html (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2018-0560?: CVE-2018-0560 is a medium-severity vulnerability in Hatena Bookmark, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2018-04-16.
How severe is CVE-2018-0560?: Medium severity. CVSS v3 base score is 6.5 out of 10.