VULNERABILITY INTELLIGENCE

CVE-2009-3890

CVSS score6 MEDIUM
EPSS probability8.43%
CISA KEVNot currently listed
Published2009-11-17
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:S/C:P/I:P/A:P

Description

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.

Weakness classification

  • CWE-94: Improper Control of Generation of Code ('Code Injection')

Primary references