CVE-2009-3890 : Unrestricted file upload vulnerability in the wp_check_filetype function in wp-includes/functions.php in WordPress befor

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.

Published 2009-11-17 18:30:00

Updated 2017-11-21 18:10:55

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Execute code

Threat overview for CVE-2009-3890

Top countries where our scanners detected CVE-2009-3890

Top open port discovered on systems with this issue 80

IPs affected by CVE-2009-3890 2

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Exploit prediction scoring system (EPSS) score for CVE-2009-3890

EPSS FAQ

3.26%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 91 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-3890

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
6.0	MEDIUM	AV:N/AC:M/Au:S/C:P/I:P/A:P	6.8	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial

CWE ids for CVE-2009-3890

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

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2009-3890

Products affected by CVE-2009-3890