MoodleCMS

CVE-2012-2366

MEDIUM · 5.5 CVSS v2.0 Published 2012-07-21
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
61/100
Remediation priority · Elevated
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
mod/data/preset.php in Moodle 2.1.x before 2.1.6 and 2.2.x before 2.2.3 does not properly iterate through an array, which allows remote authenticated users to overwrite arbitrary database activity presets via unspecified vectors.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

The vulnerability exists in Moodle's mod/data/preset.php where improper array iteration allows remote authenticated users to overwrite arbitrary database activity presets. The code fails to properly validate or scope array traversal when processing preset data, enabling preset manipulation beyond the intended boundaries.

MitigationUpgrade Moodle to version 2.1.6 or later for the 2.1.x branch, or 2.2.3 or later for the 2.2.x branch. This is a logic error in preset handling that was corrected in the patched releases.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
MoodleCMS
Affected:= 2.1.0= 2.1.1= 2.1.2= 2.1.3= 2.1.4= 2.1.5= 2.2.0= 2.2.1= 2.2.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
Partial

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Moodle version
    Log into the Moodle admin panel and navigate to Site administration > Server > Environment, or check the version.php file in the Moodle root directory (look for $release or $version variables)
    Affected if The installed version is 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.5, 2.2.0, 2.2.1, or 2.2.2
  2. Verify Data activity module is enabled
    Go to Site administration > Plugins > Activity modules > Manage activities, or query the mdl_modules table in the database for the 'data' module with status = 1
    Affected if The Data activity module is installed and enabled on the site
  3. Confirm preset functionality is accessible
    Check if any course has a Data activity instance created, which would allow access to mod/data/preset.php through the web interface. Look in mdl_data table for active instances.
    Affected if There are active Data activity instances where users can access the preset import/export feature
  4. Check for custom presets in the filesystem
    Inspect the mod/data/preset directory within the Moodle installation for any custom preset folders that could be targeted for overwriting
    Affected if Custom presets exist in the mod/data/preset directory that could be manipulated through the vulnerability

You are affected if your Moodle version is 2.1.0-2.1.5 or 2.2.0-2.2.2 and the Data activity module is enabled with active instances that allow users to access preset functionality.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade Moodle to version 2.1.6 or later for the 2.1.x branch, or 2.2.3 or later for the 2.2.x branch. This is a logic error in preset handling that was corrected in the patched releases.

Fix this in Moodle Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2012-2366 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2012-2366 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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