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CVE-2009-3890

Unrestricted file upload vulnerability in the wp_check_filetype function in wp-includes/functions...

6.0 MediumPublic exploitFix available

CVE-2009-3890 is a medium vulnerability (CVSS 6.0) in Wordpress, published November 17, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.73%, the 95th percentile. Fixed in wordpress 2.8.6-1.

What does this mean?
Severity
6.0 MediumCVSS 2.0, NVD
Exploit chance
8.73%EPSS, 95th percentile
Exploitation
None known1 public exploit
Fixed in
2.8.6-1wordpress +2 more

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.

Exploit likelihood

8.73%Down 23.4 points since Feb 4, 2022
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
wordpress
Debian:12
before 2.8.6-1
2.8.6-1
wordpress
Debian:13
before 2.8.6-1
2.8.6-1
wordpress
Debian:14
before 2.8.6-1
2.8.6-1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBWordPress Core < 2.8.5 - Unrestricted Arbitrary File Upload / Arbitrary PHP Code Execution2009-11-11

What each source reports

NVD Score used6.0

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.

Record
CVE-2009-3890
CVSS 2.0
6.0 MediumAV:N/AC:M/Au:S/C:P/I:P/A:P
Weakness
CWE-94
Updated
2026-11-02
CVE ListNo score

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.

Record
CVE-2009-3890
Updated
2026-11-02
EUVDEUVD-2009-3861No score

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.

Record
EUVD-2009-3861
Updated
2026-11-03
GitHub AdvisoriesGHSA-fg69-73j6-crqrNo score

Unrestricted file upload vulnerability in the wp_check_filetype function in wp-includes/functions...

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.

Record
GHSA-fg69-73j6-crqr
Weakness
CWE-94
Updated
2026-11-02
OSVNo score

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.

Record
CVE-2009-3890
Updated
2026-11-02
OSVDEBIAN-CVE-2009-3890No score

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.

Record
DEBIAN-CVE-2009-3890
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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