CVE-2009-3890
Unrestricted file upload vulnerability in the wp_check_filetype function in wp-includes/functions.php in WordPress before 2.8.6, when a…
- 6.0MediumCVSS base score
- 8.7%Exploitation in 30 daysEPSS · top 4.8% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- WordPress Core < 2.8.5 - Unrestricted Arbitrary File Upload / Arbitrary PHP Code Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 10089webapps, phppublished 11 Nov 2009Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By redhat
- 12 days later
· 12 days later
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.0 | AV:N/AC:M/Au:S/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 8.7% · top 4.8% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.0.
Affected products
n/a
- affected n/a
References
References10
- 37332 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [oss-security] 20091116 Re: CVE request: Wordpress 2.8.6 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 20091111 WordPress <= 2.8.5 Unrestricted File Upload Arbitrary PHP Code Execution (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- http://wordpress.org/development/2009/11/wordpress-2-8-6-security-release/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20091112 Re: WordPress <= 2.8.5 Unrestricted File Upload Arbitrary PHP Code Execution (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- [oss-security] 20091115 Re: CVE request: Wordpress 2.8.6 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://core.trac.wordpress.org/ticket/11122 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 59958 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 20091112 Re: WordPress <= 2.8.5 Unrestricted File Upload Arbitrary PHP Code Execution (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- [oss-security] 20091115 CVE request: Wordpress 2.8.6 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-3861 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-3890)Record last updated .