How severe is CVE-2012-3388?

CVE-2012-3388 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2012-3388 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3388?

CVE-2012-3388 primarily affects Moodle. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3388?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-3388 published?

CVE-2012-3388 was published on 2012-07-23 and last updated on 2026-06-16.

CVE-2012-3388

CVE-2012-3388 is a medium-severity vulnerability in Moodle with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Moodle
Published: 2012-07-23
Last modified: 2026-06-16

Description

The is_enrolled function in lib/accesslib.php in Moodle 2.2.x before 2.2.4 and 2.3.x before 2.3.1 does not properly interact with the caching feature, which might allow remote authenticated users to bypass an intended capability check via unspecified vectors that trigger caching of a user record.

Frequently asked questions

What is CVE-2012-3388?: The is_enrolled function in lib/accesslib.php in Moodle 2.2.x before 2.2.4 and 2.3.x before 2.3.1 does not properly interact with the caching feature, which might allow remote authenticated users to bypass an intended capability check via unspecified vectors that trigger caching of a user record.
How severe is CVE-2012-3388?: CVE-2012-3388 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2012-3388 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3388?: CVE-2012-3388 primarily affects Moodle. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3388?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3388 published?: CVE-2012-3388 was published on 2012-07-23 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:moodle:moodle:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.2.2:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.2.3:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.3.0:*:*:*:*:*:*:*

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