CVE-2011-4590 — The web services implementation in Moodle 2.0.x before 2.0.6 and 2.1.x before 2.1.3 does not properly consider the maintenance-mode state and account attributes during login attempts, which allows remote authenticated users to bypass intended access restrictions by connecting to a webservice server

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MEDIUM

The web services implementation in Moodle 2.0.x before 2.0.6 and 2.1.x before 2.1.3 does not properly consider the maintenance-mode state and account attributes during login attempts, which allows remote authenticated users to bypass intended access restrictions by connecting to a webservice server

Published Jul 20, 2012

4.0

MEDIUM

CVSS 2.0

EPSS 1.17%

Description

The web services implementation in Moodle 2.0.x before 2.0.6 and 2.1.x before 2.1.3 does not properly consider the maintenance-mode state and account attributes during login attempts, which allows remote authenticated users to bypass intended access restrictions by connecting to a webservice server.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.17% 0.01170

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01170

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.17% (0.01170)	66.24th	v5 (v2026.06.15)
Jun 15, 2026	1.17% (0.01170)	63.20th	v5 (v2026.06.15)
Mar 17, 2025	0.19% (0.00189)	38.58th	v4 (v2025.03.14)
Dec 12, 2024	0.10% (0.00105)	44.42th	v3 (v2023.03.01)
Mar 7, 2023	0.11% (0.00107)	41.86th	v3 (v2023.03.01)
Mar 6, 2023	1.06% (0.01061)	52.82th	v2 (v2022.01.01)
Sep 19, 2022	1.06% (0.01061)	51.19th	v2 (v2022.01.01)
Apr 1, 2022	1.06% (0.01061)	49.19th	v2 (v2022.01.01)
Feb 4, 2022	1.06% (0.01061)	28.23th	v2 (v2022.01.01)

Weaknesses (1)

CWE-287

Improper Authentication

References (3)

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-28629
x_refsource_CONFIRMPatch
http://moodle.org/mod/forum/discuss.php?d=191759
x_refsource_CONFIRMPatchVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=761248
x_refsource_CONFIRM

Link	Providers	Tags
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-28629		x_refsource_CONFIRMPatch
http://moodle.org/mod/forum/discuss.php?d=191759		x_refsource_CONFIRMPatchVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=761248		x_refsource_CONFIRM

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner redhat

Published Jul 20, 2012

Updated Aug 7, 2024

Reserved Nov 29, 2011

Link CVE-2011-4590

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2011-4590

Red Hat

Severity n/a

Public date n/a

Links CVE-2011-4590