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    CVE-2006-3204

    Ultimate PHP Board (UPB) 1.9.6 and earlier uses a cryptographically weak block cipher with a large key collision space, which allows remote attackers to determine a suitable decryption key given the plaintext and ciphertext by obtaining the plaintext password, which is sent when logging in, and the ciphertext, which is set in the pass_env cookie.

    Published:Jun 24, 2006
    Last Modified:Apr 16, 2026
    EPS:Jun 24, 2006
    EPSS Score:0.00641
    CVSS Score:5

    Affected Products

    Vendor
    Ultimate Php Board
    Product
    Ultimate Php Board

    Exploits

    http://www.kliconsulting.com/users/mbrooks/UPB_0-day.txthttp://www.kliconsulting.com/users/mbrooks/UPB_0-day.txt

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-61539 (CVSS 6.1) — Cross site scripting (XSS) vulnerability in Ultimate PHP Board 2.2.7 via the u_name parameter in lostpassword.…
    CVE-2025-61540 (CVSS 6.5) — SQL injection vulnerability in Ultimate PHP Board 2.2.7 via the username field in lostpassword.php.…
    CVE-2006-7169 (CVSS 6.8) — PHP remote file inclusion vulnerability in includes/header_simple.php in Ultimate PHP Board (UPB) 2.0 and earl…
    CVE-2006-6790 (CVSS 7.5) — Direct static code injection vulnerability in chat/login.php in Ultimate PHP Board (UPB) 2.0b1 and earlier all…
    CVE-2006-3207 (CVSS 5) — Directory traversal vulnerability in newpost.php in Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote a…
    CVE-2006-3203 (CVSS 10) — The installation of Ultimate PHP Board (UPB) 1.9.6 and earlier includes a default administrator login account …
    CVE-2006-3205 (CVSS 5) — Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote attackers to gain access via modified user_env, pass_…
    CVE-2006-3208 (CVSS 6.5) — Direct static code injection vulnerability in Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote authent…
    CVE-2006-3206 (CVSS 5) — register.php in Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote attackers to create arbitrary account…
    CVE-2005-2004 (CVSS 5) — Multiple cross-site scripting vulnerabilities in Ultimate PHP Board (UPB) 1.9.6 GOLD and earlier allow remote …

    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