CVE-2008-1930

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    CVE-2008-1930

    Published: 28 Apr 2008Last Modified: 10 Apr 2026

    Summary:

    Details: The cookie authentication method in WordPress 2.5 relies on a hash of a concatenated string containing USERNAME and EXPIRY_TIME, which allows remote attackers to forge cookies by registering a username that results in the same concatenated string, as demonstrated by registering usernames beginning with "admin" to obtain administrator privileges, aka a "cryptographic splicing" issue. NOTE: this vulnerability exists because of an incomplete fix for CVE-2007-6013.

    References: http://secunia.com/advisories/29965, http://www.cl.cam.ac.uk/users/sjm217/advisories/wordpress-cookie-integrity.txt, http://www.vupen.com/english/advisories/2008/1372/references, http://wordpress.org/development/2008/04/wordpress-251/, http://www.securityfocus.com/bid/28935, http://www.securityfocus.com/archive/1/491356/100/0/threaded, http://www.securitytracker.com/id?1019923, https://exchange.xforce.ibmcloud.com/vulnerabilities/42027

    Affected packages

    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