Moodle up to 1.9.13 numeric error

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Moodle up to 1.9.13 (Learning Management Software) and classified as problematic. This issue affects an unknown code block. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is availability. The summary by CVE is:

message/refresh.php in Moodle 1.9.x before 1.9.14 allows remote authenticated users to cause a denial of service (infinite request loop) via a URL that specifies a zero wait time for message refreshing.

The weakness was released 07/11/2012 as Bug 747444 as not defined bug report (Bugzilla). The advisory is shared at The identification of this vulnerability is CVE-2011-4305 since 11/04/2011. The exploitation is known to be easy. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.9.3 eliminates this vulnerability.

Entries connected to this vulnerability are available at 61245, 61244, 61243 and 61242.






CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Numeric error
CWE: CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


OpenVAS ID: 53633
OpenVAS Name: Debian Security Advisory DSA 2338-1 (moodle)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Moodle 1.9.3
Patch: 97f258fabb3ebfa7acc7c02cb59de92b01710f99


11/04/2011 🔍
07/11/2012 +250 days 🔍
07/11/2012 +0 days 🔍
03/23/2015 +985 days 🔍
12/05/2021 +2449 days 🔍



Advisory: Bug 747444
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-4305 (🔍)
See also: 🔍


Created: 03/23/2015 04:50 PM
Updated: 12/05/2021 11:51 PM
Changes: 03/23/2015 04:50 PM (51), 02/18/2019 10:22 AM (4), 12/05/2021 11:51 PM (4)
Complete: 🔍


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