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CVE-2016-3734

27
FAUCET Score

CVE-2016-3734 is a Cross-Site Request Forgery (CSRF) vulnerability affecting Moodle versions 3.0.3 and earlier, 2.9.5 and earlier, 2.8.11 and earlier, and 2.7.13 and earlier. This flaw allows remote attackers to hijack authenticated user sessions to mark forum posts as read. With a CVSS score of 8.8 (High), this vulnerability has a network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.7.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.7.0:*:*:*:*:*:*:*
2.7.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.7.0:beta:*:*:*:*:*:*
2.7.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.7.0:rc1:*:*:*:*:*:*
2.7.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.7.0:rc2:*:*:*:*:*:*
2.7.1CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.7.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.07%
Probability of exploitation in next 30 days
EPSS Percentile
61.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0107 is in the 61st percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.7.14
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.8.12
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.9.6
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 3.0.4

Vendor Advisories (1)

composerGHSA-r867-v437-4rrmhigh

Moodle Cross-site request forgery (CSRF) vulnerability

May 13, 2022

References

git.moodle.org / gw
Patch
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
openwall.com / lists/oss-security/2016/05/17/4
Mailing ListThird Party Advisory
securityfocus.com / bid/91281
Third Party AdvisoryVDB Entry
securitytracker.com / id/1035902
Third Party AdvisoryVDB Entry