How severe is CVE-2009-4303?

CVE-2009-4303 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-4303 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4303?

CVE-2009-4303 primarily affects Moodle. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-4303?

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

When was CVE-2009-4303 published?

CVE-2009-4303 was published on 2009-12-16 and last updated on 2026-06-16.

CVE-2009-4303

CVE-2009-4303 is a medium-severity vulnerability in Moodle with a CVSS 2.0 base score of 5.0. 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-200.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Moodle
Published: 2009-12-16
Last modified: 2026-06-16

Description

Moodle 1.8 before 1.8.11 and 1.9 before 1.9.7 stores (1) password hashes and (2) unspecified "secrets" in backup files, which might allow attackers to obtain sensitive information.

Frequently asked questions

What is CVE-2009-4303?: Moodle 1.8 before 1.8.11 and 1.9 before 1.9.7 stores (1) password hashes and (2) unspecified "secrets" in backup files, which might allow attackers to obtain sensitive information.
How severe is CVE-2009-4303?: CVE-2009-4303 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-4303 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4303?: CVE-2009-4303 primarily affects Moodle. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-4303?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4303 published?: CVE-2009-4303 was published on 2009-12-16 and last updated on 2026-06-16.

References

Affected products (15)

cpe:2.3:a:moodle:moodle:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.8.2:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.8.3:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.8.4:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.8.5:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.8.7:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.8.8:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.8.9:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.8.10:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.9.1:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.9.2:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.9.3:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.9.4:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.9.5:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:1.9.6:*:*:*:*:*:*:*

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