MEDIUM
CVE-2016-4872
CWE-200Published: April 17, 2017· Updated: Jun 17, 2026
4.3
CVSS v3.1
Official Description
Cybozu Office 9.0.0 to 10.4.0 allows remote authenticated attackers to bypass access restrictions to view the names of unauthorized projects via a breadcrumb trail.
Technical Analysis
CVE-2016-4872 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Vendors & Products
cybozu1 product(s)
office
Source: NVD CPE · 16 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (8)
→
http://jvn.jp/en/jp/JVN07148816/index.htmlThird Party Advisory · VDB Entry
→
http://jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000188.htmlThird Party Advisory · VDB Entry
→
http://www.securityfocus.com/bid/93461Third Party Advisory · VDB Entry
→
https://support.cybozu.com/ja-jp/article/9424Vendor Advisory
→
http://jvn.jp/en/jp/JVN07148816/index.htmlThird Party Advisory · VDB Entry
→
http://jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000188.htmlThird Party Advisory · VDB Entry
→
http://www.securityfocus.com/bid/93461Third Party Advisory · VDB Entry
→
https://support.cybozu.com/ja-jp/article/9424Vendor Advisory
Quick Facts
CVE IDCVE-2016-4872
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-200
CISA KEVNo
Affected1 vendor(s)
PublishedApr 17, 2017
Related CVEs (CWE-200)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-4872 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.