Is CVE-2009-4098 in the CISA KEV catalog?

No. CVE-2009-4098 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-4098?

CVE-2009-4098 has a CVSS v2 base score of 6.0 (MEDIUM).

What is the EPSS score for CVE-2009-4098?

CVE-2009-4098 has an EPSS score of 18.68% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2009-4098

MEDIUMEPSS 97th pctl

6.0

CVSS v2

NVD

Description

Unrestricted file upload vulnerability in banner-edit.php in OpenX adserver 2.8.1 and earlier allows remote authenticated users with banner / file upload permissions to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in an images directory.

CWE-20Improper Input Validation

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

18.68%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.