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CVE-2016-3731

20
FAUCET Score

CVE-2016-3731 is a medium-severity information disclosure vulnerability affecting Moodle versions 3.0 through 3.0.3, 2.9 through 2.9.5, and 2.8 through 2.8.11. It allows unauthenticated remote attackers to discover the names of hidden forums and forum discussions. The vulnerability has a CVSS score of 5.3, indicating low impact on confidentiality with no integrity or availability compromise, and requires no user interaction or privileges to exploit. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant media coverage, though it has received some community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
2.8.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.8.0:*:*:*:*:*:*:*
2.8.1CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.8.1:*:*:*:*:*:*:*
2.8.2CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.8.2:*:*:*:*:*:*:*
2.8.3CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.8.3:*:*:*:*:*:*:*
2.8.4CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.8.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 57th percentile among its peer group of 23,703 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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

Remediation records are not available for this CVE.

References

bugzilla.redhat.com / show_bug.cgi
Issue Tracking
openwall.com / lists/oss-security/2016/05/17/4
Mailing ListThird Party Advisory
securitytracker.com / id/1035902
Third Party AdvisoryVDB Entry