How severe is CVE-2009-4391?

CVE-2009-4391 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2009-4391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4391?

CVE-2009-4391 affects Daniel Regelein Dr Blob. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-4391?

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

When was CVE-2009-4391 published?

CVE-2009-4391 was published on 2009-12-22 and last updated on 2026-06-16.

CVE-2009-4391

CVE-2009-4391 is a medium-severity vulnerability in Daniel Regelein Dr Blob 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: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Daniel Regelein Dr Blob
Published: 2009-12-22
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in the File list (dr_blob) extension 2.1.1 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2009-4391?: Cross-site scripting (XSS) vulnerability in the File list (dr_blob) extension 2.1.1 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2009-4391?: CVE-2009-4391 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2009-4391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4391?: CVE-2009-4391 affects Daniel Regelein Dr Blob. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-4391?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4391 published?: CVE-2009-4391 was published on 2009-12-22 and last updated on 2026-06-16.

References

http://typo3.org/teams/security/security-bulletins/typo3-sa-2009-020/

Affected products (1)

cpe:2.3:a:daniel_regelein:dr_blob:2.1.1:*:*:*:*:*:*:*

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