How severe is CVE-2011-4280?

CVE-2011-4280 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-4280 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4280?

CVE-2011-4280 primarily affects Moodle. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4280?

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

When was CVE-2011-4280 published?

CVE-2011-4280 was published on 2012-07-16 and last updated on 2026-06-16.

CVE-2011-4280

CVE-2011-4280 is a medium-severity vulnerability in Moodle with a CVSS 2.0 base score of 4.3. 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-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Moodle
Published: 2012-07-16
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in the Spike PHPCoverage (aka spikephpcoverage) library, as used in Moodle 2.0.x before 2.0.2 and other products, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2011-4280?: Cross-site scripting (XSS) vulnerability in the Spike PHPCoverage (aka spikephpcoverage) library, as used in Moodle 2.0.x before 2.0.2 and other products, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2011-4280?: CVE-2011-4280 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-4280 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4280?: CVE-2011-4280 primarily affects Moodle. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4280?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4280 published?: CVE-2011-4280 was published on 2012-07-16 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:moodle:moodle:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:nimish_pachapurkar:spike_phpcoverage:*:*:*:*:*:*:*:*

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