How severe is CVE-2009-2371?

CVE-2009-2371 has a CVSS 2.0 base score of 6.5, rated medium severity.

Is CVE-2009-2371 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2371?

CVE-2009-2371 primarily affects Michelle Cox Advanced Forum. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2371?

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

When was CVE-2009-2371 published?

CVE-2009-2371 was published on 2009-07-08 and last updated on 2026-06-16.

CVE-2009-2371

CVE-2009-2371 is a medium-severity vulnerability in Michelle Cox Advanced Forum with a CVSS 2.0 base score of 6.5. 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 6.5)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Michelle Cox Advanced Forum
Published: 2009-07-08
Last modified: 2026-06-16

Description

Advanced Forum 6.x before 6.x-1.1, a module for Drupal, does not prevent users from modifying user signatures after the associated comment format has been changed to an administrator-controlled input format, which allows remote authenticated users to inject arbitrary web script, HTML, and possibly PHP code via a crafted user signature.

Frequently asked questions

What is CVE-2009-2371?: Advanced Forum 6.x before 6.x-1.1, a module for Drupal, does not prevent users from modifying user signatures after the associated comment format has been changed to an administrator-controlled input format, which allows remote authenticated users to inject arbitrary web script, HTML, and possibly PHP code via a crafted user signature.
How severe is CVE-2009-2371?: CVE-2009-2371 has a CVSS 2.0 base score of 6.5, rated medium severity.
Is CVE-2009-2371 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2371?: CVE-2009-2371 primarily affects Michelle Cox Advanced Forum. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2371?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2371 published?: CVE-2009-2371 was published on 2009-07-08 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:michelle_cox:advanced_forum:6.x-1.0:*:*:*:*:*:*:*
cpe:2.3:a:michelle_cox:advanced_forum:6.x-1.x-dev:*:*:*:*:*:*:*

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