How severe is CVE-2009-4302?

CVE-2009-4302 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-4302 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4302?

CVE-2009-4302 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-2009-4302?

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

When was CVE-2009-4302 published?

CVE-2009-4302 was published on 2009-12-16 and last updated on 2026-06-16.

CVE-2009-4302

CVE-2009-4302 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-310.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Moodle
Published: 2009-12-16
Last modified: 2026-06-16

Description

login/index_form.html in Moodle 1.8 before 1.8.11 and 1.9 before 1.9.7 links to an index page on the HTTP port even when the page is served from an HTTPS port, which might cause login credentials to be sent in cleartext, even when SSL is intended, and allows remote attackers to obtain these credentials by sniffing.

Frequently asked questions

What is CVE-2009-4302?: login/index_form.html in Moodle 1.8 before 1.8.11 and 1.9 before 1.9.7 links to an index page on the HTTP port even when the page is served from an HTTPS port, which might cause login credentials to be sent in cleartext, even when SSL is intended, and allows remote attackers to obtain these credentials by sniffing.
How severe is CVE-2009-4302?: CVE-2009-4302 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-4302 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4302?: CVE-2009-4302 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-2009-4302?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4302 published?: CVE-2009-4302 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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