What is CVE-2015-7776?

CVE-2015-7776 is a medium-severity vulnerability in Cybozu Garoon, classified under Information Disclosure. CVSS score: 4.3/10. Published 2016-06-19.

How severe is CVE-2015-7776?

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

Information disclosure in Cybozu Garoon

CVE-2015-7776

Cybozu Garoon 3.x and 4.x before 4.2.0 does not properly restrict loading of IMG elements, which makes it easier for remote attackers to track users via a crafted HTML e-mail message, a different vulnerability than CVE-2016-1196.

Vulnerability class: Information Disclosure

Published 2016-06-19 · 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: 0.013 (69.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Cybozu Garoon — versions 3.0.0, 3.0.1, 3.0.2

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

jvn.jp/en/jp/JVN53542912/index.html (Vendor Advisory, third-party-advisory)
support.cybozu.com/ja-jp/article/8897 (Patch, Vendor Advisory)
support.cybozu.com/ja-jp/article/8757 (Patch, Vendor Advisory)
jvndb.jvn.jp/jvndb/JVNDB-2016-000085 (Vendor Advisory, third-party-advisory)
support.cybozu.com/ja-jp/article/8982 (Patch, Vendor Advisory)
support.cybozu.com/ja-jp/article/8951 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2015-7776?: CVE-2015-7776 is a medium-severity vulnerability in Cybozu Garoon, classified under Information Disclosure. CVSS score: 4.3/10. Published 2016-06-19.
How severe is CVE-2015-7776?: Medium severity. CVSS v3 base score is 4.3 out of 10.