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    CVE-2009-3012

    Mozilla Firefox 3.0.13 and earlier, 3.5, 3.6 a1 pre, and 3.7 a1 pre does not properly block data: URIs in Location headers in HTTP responses, which allows remote attackers to conduct cross-site scripting (XSS) attacks via vectors related to (1) injecting a Location header that contains JavaScript sequences in a data:text/html URI or (2) entering a data:text/html URI with JavaScript sequences when specifying the content of a Location header. NOTE: the JavaScript executes outside of the context of the HTTP site.

    Published:Jul 14, 2009
    Last Modified:Apr 23, 2026
    EPS:Aug 31, 2009
    EPSS Score:0.00245
    CVSS Score:4.3

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox

    Exploits

    http://websecurity.com.ua/3323/http://websecurity.com.ua/3386/http://websecurity.com.ua/3323/http://websecurity.com.ua/3386/

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    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