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    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 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:Nov 17, 2009
    Last Modified:Apr 23, 2026
    EPS:Nov 17, 2009
    EPSS Score:0.10487
    CVSS Score:6

    Affected Products

    Vendor
    Wordpress
    Product
    Wordpress

    Exploits

    https://www.exploit-db.com/exploits/10089

    Related CVEs

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    CVE-2026-84821 (CVSS 7.5) — Unauthenticated Broken Access Control in WP Fast Total Search <= 1.82.284 versions.…
    CVE-2026-84819 (CVSS 7.1) — Unauthenticated Cross Site Scripting (XSS) in WPAdverts <= 2.3.3 versions.…
    CVE-2026-84816 (CVSS 7.1) — Unauthenticated Cross Site Scripting (XSS) in WPCS <= 1.3.2 versions.…
    CVE-2026-81803 (CVSS 7.5) — Subscriber Remote Code Execution (RCE) in RepairBuddy <= 4.1224 versions.…
    CVE-2026-81799 (CVSS 7.5) — Unauthenticated Broken Access Control in Return Refund and Exchange For WooCommerce <= 4.6.4 versions.…
    CVE-2026-81796 (CVSS 7.3) — Unauthenticated Broken Authentication in WP Travel <= 12.0.3 versions.…
    CVE-2026-81793 (CVSS 6.5) — Unauthenticated Broken Access Control in Salon booking system <= 10.31.5 versions.…
    CVE-2026-81788 (CVSS 6.3) — Subscriber Broken Access Control in IMPress for IDX Broker <= 3.3.0 versions.…
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    References

    http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0142.html
    http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0149.html
    http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0153.html
    http://core.trac.wordpress.org/ticket/11122
    http://secunia.com/advisories/37332
    http://wordpress.org/development/2009/11/wordpress-2-8-6-security-release/
    http://www.openwall.com/lists/oss-security/2009/11/15/2
    http://www.openwall.com/lists/oss-security/2009/11/15/3
    http://www.openwall.com/lists/oss-security/2009/11/16/1
    http://www.osvdb.org/59958
    http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0142.html
    http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0149.html
    http://archives.neohapsis.com/archives/fulldisclosure/2009-11/0153.html
    http://core.trac.wordpress.org/ticket/11122
    http://secunia.com/advisories/37332
    http://wordpress.org/development/2009/11/wordpress-2-8-6-security-release/
    http://www.openwall.com/lists/oss-security/2009/11/15/2
    http://www.openwall.com/lists/oss-security/2009/11/15/3
    http://www.openwall.com/lists/oss-security/2009/11/16/1
    http://www.osvdb.org/59958

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High