{"id":"CVE-2009-3890","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-3890","generatedAt":"2026-10-27T21:44:37.029Z","title":"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…","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.","published":"2009-11-17T18:30:00.000Z","lastModified":"2026-06-16T23:12:35.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":6,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:S/C:P/I:P/A:P"},"cwe":["CWE-94"],"affected":["wordpress/wordpress"],"epss":{"score":0.08427,"percentile":0.9496,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2009-11-11","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":10089,"kind":"exploit","title":"WordPress Core < 2.8.5 - Unrestricted Arbitrary File Upload / Arbitrary PHP Code Execution","url":"https://www.exploit-db.com/exploits/10089","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/10089.txt","file":"exploits/php/webapps/10089.txt","published":"2009-11-11","added":"2009-11-10","updated":"2017-05-04","author":"Dawid Golunski","type":"webapps","platform":"php","port":null,"verified":true,"codes":["CVE-2009-3890","OSVDB-59958"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comwordpress-2.8.5.tar.gz","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"high","text":"A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 8.4%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0142.html","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0149.html","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0153.html","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://core.trac.wordpress.org/ticket/11122","tags":["Issue Tracking","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/37332","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://wordpress.org/development/2009/11/wordpress-2-8-6-security-release/","tags":["Patch","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2009/11/15/2","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2009/11/15/3","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2009/11/16/1","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.osvdb.org/59958","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0142.html","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0149.html","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0153.html","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://core.trac.wordpress.org/ticket/11122","tags":["Issue Tracking","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/37332","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://wordpress.org/development/2009/11/wordpress-2-8-6-security-release/","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2009/11/15/2","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2009/11/15/3","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2009/11/16/1","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.osvdb.org/59958","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-3890","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}