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CVE-2012-4390

16
FAUCET Score

CVE-2012-4390 describes a user enumeration vulnerability in ownCloud versions prior to 4.0.7, specifically affecting the calendar and contacts applications. This low-severity vulnerability (CVSS 4.0) allows authenticated remote attackers to discover registered usernames. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.6CPE matchmatch criteria
cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:owncloud:owncloud_server:3.0.0:*:*:*:*:*:*:*
3.0.1CPE matchmatch criteria
cpe:2.3:a:owncloud:owncloud_server:3.0.1:*:*:*:*:*:*:*
3.0.2CPE matchmatch criteria
cpe:2.3:a:owncloud:owncloud_server:3.0.2:*:*:*:*:*:*:*
3.0.3CPE matchmatch criteria
cpe:2.3:a:owncloud:owncloud_server:3.0.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:N/AC:L/Au:S/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0180 is in the 89th percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

owncloud.org / changelog
github.com / owncloud/core/commit/4682846d3ecdad15c6a60126dda75eb7fa97c707
ExploitPatch
openwall.com / lists/oss-security/2012/09/02/2