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CVE-2012-3387

16
FAUCET Score

CVE-2012-3387 describes a vulnerability in Moodle 2.3.x before 2.3.1 where a client-side check for file upload alias restrictions could be bypassed. This allowed remote authenticated users to upload restricted aliases by omitting the client-side check. With a CVSS score of 4.0 (AV:N/AC:L/Au:S/C:N/I:P/A:N), this vulnerability is of low severity, requiring authentication and low attack complexity to achieve a partial integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.3.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
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
1.13%
Probability of exploitation in next 30 days
EPSS Percentile
63.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0113 is in the 77th percentile among its peer group of 21,951 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)

composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.3.1

Vendor Advisories (1)

composerGHSA-w66h-c2vj-cm7fmedium

Moodle Authentication Bypass in File Upload

May 13, 2022

References

git.moodle.org / gw
openwall.com / lists/oss-security/2012/07/17/1
secunia.com / advisories/49890
exchange.xforce.ibmcloud.com / vulnerabilities/76954
securityfocus.com / bid/54481