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CVE-2011-4582

Moodle Open Redirect in Calendar Set Page

4.9 MediumFix available

CVE-2011-4582 is a medium vulnerability (CVSS 4.9) in Moodle, published July 20, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.19%, the 68th percentile. Fixed in moodle/moodle 2.1.3.

What does this mean?
Severity
4.9 MediumCVSS 2.0, NVD
Exploit chance
1.19%EPSS, 68th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
2.1.3moodle/moodle

Description

Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.

Exploit likelihood

1.19%Up 0.1 points since Feb 4, 2022
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
moodle/moodle
Packagist
2.1 up to 2.1.3
2.1.3

What each source reports

NVD Score used4.9

Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.

Record
CVE-2011-4582
CVSS 2.0
4.9 MediumAV:N/AC:M/Au:S/C:P/I:P/A:N
Weakness
CWE-20
Updated
2026-11-02
CVE ListNo score

Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.

Record
CVE-2011-4582
Updated
2026-11-02
EUVDEUVD-2022-4334No score

Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.

Record
EUVD-2022-4334
Updated
2026-11-03
GitHub AdvisoriesGHSA-jcrj-x36p-h9f6No score

Moodle Open Redirect in Calendar Set Page

Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.

Record
GHSA-jcrj-x36p-h9f6
Weakness
CWE-601
Updated
2026-11-02
OSVGHSA-jcrj-x36p-h9f6No score

Moodle Open Redirect in Calendar Set Page

Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.

Record
GHSA-jcrj-x36p-h9f6
Weakness
CWE-601
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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