peter bassill · operator
$ cve CVE-2009-3890 JSON

CVE-2009-3890 EXPLOIT

6.0
MEDIUM · CVSS 2.0 · EPSS 8.4% (pctl 95)

Patch early

A public exploit exists.

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.

Scoring

CVSS6.0 (MEDIUM, v2.0)
VectorAV:N/AC:M/Au:S/C:P/I:P/A:P
EPSS8.43% — more likely to be exploited than 95% of all CVEs
WeaknessCWE-94
On CISA KEVno
Public exploityes
Published2009-11-17
Last modified2026-06-16

Affected (1)

VendorProduct
wordpresswordpress

Public exploits

SourceTitleDate
exploit-dbWordPress Core < 2.8.5 - Unrestricted Arbitrary File Upload / Arbitrary PHP Code Execution2009-11-11

References

→ the Explorer  ·  watch your stack  ·  NVD