What is CVE-2015-8487?

CVE-2015-8487 is a medium-severity vulnerability in Cybozu Office, classified under Information Disclosure. CVSS score: 4.3/10. Published 2016-02-17.

How severe is CVE-2015-8487?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Information disclosure in Cybozu Office

CVE-2015-8487

Cybozu Office 9.0.0 through 10.3 allows remote attackers to discover CSRF tokens via unspecified vectors, a different vulnerability than CVE-2015-8488.

Vulnerability class: Information Disclosure

Published 2016-02-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.012 (65.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Cybozu Office — versions 9.0, 9.1.0, 9.2.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

jvn.jp/en/jp/JVN47296923/index.html (Vendor Advisory, third-party-advisory)
jvndb.jvn.jp/jvndb/JVNDB-2016-000022 (Vendor Advisory, third-party-advisory)
cs.cybozu.co.jp/2015/006071.html (Vendor Advisory)

Frequently asked questions

What is CVE-2015-8487?: CVE-2015-8487 is a medium-severity vulnerability in Cybozu Office, classified under Information Disclosure. CVSS score: 4.3/10. Published 2016-02-17.
How severe is CVE-2015-8487?: Medium severity. CVSS v3 base score is 4.3 out of 10.