Moodle up to 2.1.1 code injection

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Moodle up to 2.1.1 (Learning Management Software) and classified as problematic. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Moodle through 2.5.2 allows remote authenticated administrators to execute arbitrary programs by configuring the aspell pathname and then triggering a spell-check operation within the TinyMCE editor.

The weakness was published 10/31/2013 by Brandon Perry (Website). The advisory is available at This vulnerability is handled as CVE-2013-3630 since 05/21/2013. The exploitation is known to be difficult. The attack may be launched remotely. A simple authentication is necessary for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

The exploit is available at It is declared as highly functional. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 71063 (Fedora 20 : moodle-2.5.3-1.fc20 (2013-21312)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 25840.

The vulnerability is also documented in the databases at X-Force (88432), Tenable (71063), SecurityFocus (BID 63449†) and Vulnerability Center (SBV-42431†).






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
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Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

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Nessus ID: 71063
Nessus Name: Fedora 20 : moodle-2.5.3-1.fc20 (2013-21312)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 867078
OpenVAS Name: Fedora Update for moodle FEDORA-2013-21354
OpenVAS File: 🔍
OpenVAS Family: 🔍

MetaSploit ID: moodle_cmd_exec.rb
MetaSploit Name: Moodle Remote Command Execution
MetaSploit File: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
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McAfee IPS: 🔍
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05/21/2013 🔍
10/30/2013 +162 days 🔍
10/30/2013 +0 days 🔍
10/31/2013 +1 days 🔍
10/31/2013 +0 days 🔍
11/25/2013 +25 days 🔍
12/02/2013 +7 days 🔍
03/24/2015 +477 days 🔍
01/10/2022 +2484 days 🔍



Advisory: 164479
Researcher: Brandon Perry
Status: Not defined

CVE: CVE-2013-3630 (🔍)
X-Force: 88432
Vulnerability Center: 42431 - Moodle 2.5.2 Remote Command Execution Vulnerability by Configuring Aspell Pathname, Medium
SecurityFocus: 63449 - Moodle Spellcheck Remote Command Execution Vulnerability

scip Labs:


Created: 03/24/2015 03:54 PM
Updated: 01/10/2022 07:11 AM
Changes: 03/24/2015 03:54 PM (68), 05/16/2017 04:29 AM (10), 01/10/2022 07:06 AM (3), 01/10/2022 07:11 AM (1)
Complete: 🔍
Cache ID: 44:77A:40


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