Is CVE-2011-4301 being actively exploited?

CVE-2011-4301 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-4301?

CVE-2011-4301 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2011-4301

MEDIUM · CVSS 5.0EPSS 2.1%EU EUVD

The MoodleQuickForm class in the Forms Library in lib/formslib.php in Moodle 1.9.x before 1.9.14, 2.0.x before 2.0.5, and 2.1.x before 2.1.2 does not recognize Forms API setConstant operations, which allows remote attackers to submit unexpected form content by modifying the values of constant fields.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS score: 2.1% (82th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2022-4333)
Published: July 11, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2022-4333 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle
moodle / moodle

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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