MEDIUM
CVE-2012-4390
CWE-200Published: September 5, 2012· Updated: Jun 16, 2026
4.0
CVSS v3.1
Official Description
(1) apps/calendar/appinfo/remote.php and (2) apps/contacts/appinfo/remote.php in ownCloud before 4.0.7 allows remote authenticated users to enumerate the registered users via unspecified vectors.
Technical Analysis
CVE-2012-4390 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some 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.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityNone
AvailabilityNone
AV:N/AC:L/Au:S/C:P/I:N/A:N
Affected Vendors & Products
owncloud2 product(s)
owncloudowncloud server
Source: NVD CPE · 11 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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Rapid7 / Metasploit
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Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (6)
Quick Facts
CVE IDCVE-2012-4390
CVSS Score4.0 / 10
SeverityMEDIUM
WeaknessCWE-200
CISA KEVNo
Affected1 vendor(s)
PublishedSep 5, 2012
Related CVEs (CWE-200)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2012-4390 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.