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CVE-2009-3890

MEDIUM · CVSS 6.0EPSS 8.7%EU EUVD

Unrestricted file upload vulnerability in the wp_check_filetype function in wp-includes/functions.php in WordPress before 2.8.6, when a certain configuration of the mod_mime module in the Apache HTTP Server is enabled, allows remote authenticated users to execute arbitrary code by posting an attachment with a multiple-extension filename, and then accessing this attachment via a direct request to a wp-content/uploads/ pathname, as demonstrated by a .php.jpg filename.

Key facts

CVSS score
6.0 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:S/C:P/I:P/A:P
Weakness (CWE)
CWE-94
EPSS score
8.7% (95th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-3861)
Published
November 17, 2009
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-3861 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

  • wordpress / wordpress

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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