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    CVE-2008-2020

    The CAPTCHA implementation as used in (1) Francisco Burzi PHP-Nuke 7.0 and 8.1, (2) my123tkShop e-Commerce-Suite (aka 123tkShop) 0.9.1, (3) phpMyBitTorrent 1.2.2, (4) TorrentFlux 2.3, (5) e107 0.7.11, (6) WebZE 0.5.9, (7) Open Media Collectors Database (aka OpenDb) 1.5.0b4, and (8) Labgab 1.1 uses a code_bg.jpg background image and the PHP ImageString function in a way that produces an insufficient number of different images, which allows remote attackers to pass the CAPTCHA test via an automated attack using a table of all possible image checksums and their corresponding digit strings.

    Published:Apr 30, 2008
    Last Modified:Apr 23, 2026
    EPS:Apr 30, 2008
    EPSS Score:0.00579
    CVSS Score:7.5

    Affected Products

    Vendor
    E107
    Product
    E107
    Vendor
    Labgab
    Product
    Labgab
    Vendor
    My123tkshop
    Product
    E-commerce-suite
    Vendor
    Opendb
    Product
    Opendb
    Vendor
    Phpmybittorrent
    Product
    Phpmybittorrent
    Vendor
    Phpnuke
    Product
    Php-nuke
    Vendor
    Torrentflux Project
    Product
    Torrentflux
    Vendor
    Webze
    Product
    Webze

    Exploits

    No exploit reference

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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