Every CVE Search/ Get API key

CVE-2012-3387

Moodle Authentication Bypass in File Upload

4.0 MediumFix available

CVE-2012-3387 is a medium vulnerability (CVSS 4.0) in Moodle, published July 23, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.13%, the 66th percentile. Fixed in moodle/moodle 2.3.1.

Moodle 2.3.x before 2.3.1 uses only a client-side check for whether references are permitted in a file upload, which allows remote authenticated users to bypass intended alias (aka shortcut) restrictions via a client that omits this check.

Exploit likelihood

1.13%Unchanged since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 4.0

Moodle 2.3.x before 2.3.1 uses only a client-side check for whether references are permitted in a file upload, which allows remote authenticated users to bypass intended alias (aka shortcut) restrictions via a client that omits this check.

Record
CVE-2012-3387
CVSS 2.0
4.0 MediumAV:N/AC:L/Au:S/C:N/I:P/A:N
Weakness
CWE-264
Updated
2026-11-02
CVE List No score

Moodle 2.3.x before 2.3.1 uses only a client-side check for whether references are permitted in a file upload, which allows remote authenticated users to bypass intended alias (aka shortcut) restrictions via a client that omits this check.

Record
CVE-2012-3387
Updated
2026-11-02
EUVDEUVD-2022-5508 No score

Moodle 2.3.x before 2.3.1 uses only a client-side check for whether references are permitted in a file upload, which allows remote authenticated users to bypass intended alias (aka shortcut) restrictions via a client that omits this check.

Record
EUVD-2022-5508
Updated
2026-11-03
GitHub AdvisoriesGHSA-w66h-c2vj-cm7f No score

Moodle Authentication Bypass in File Upload

Moodle 2.3.x before 2.3.1 uses only a client-side check for whether references are permitted in a file upload, which allows remote authenticated users to bypass intended alias (aka shortcut) restrictions via a client that omits this check.

Record
GHSA-w66h-c2vj-cm7f
Weakness
CWE-287
Updated
2026-11-02
OSVGHSA-w66h-c2vj-cm7f No score

Moodle Authentication Bypass in File Upload

Moodle 2.3.x before 2.3.1 uses only a client-side check for whether references are permitted in a file upload, which allows remote authenticated users to bypass intended alias (aka shortcut) restrictions via a client that omits this check.

Record
GHSA-w66h-c2vj-cm7f
Weakness
CWE-287
Updated
2026-11-02
OSVUBUNTU-CVE-2012-3387 No score

Moodle 2.3.x before 2.3.1 uses only a client-side check for whether references are permitted in a file upload, which allows remote authenticated users to bypass intended alias (aka shortcut) restrictions via a client that omits this check.

Record
UBUNTU-CVE-2012-3387
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
moodle/moodle
Packagist
2.3 up to 2.3.1
2.3.1

History

History
WhenChangedSources
2026-11-03affected
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

Show 7 moreShow less
MoveEnter Open