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    CVE-2007-1522

    Double free vulnerability in the session extension in PHP 5.2.0 and 5.2.1 allows context-dependent attackers to execute arbitrary code via illegal characters in a session identifier, which is rejected by an internal session storage module, which calls the session identifier generator with an improper environment, leading to code execution when the generator is interrupted, as demonstrated by triggering a memory limit violation or certain PHP errors.

    Published:Mar 20, 2007
    Last Modified:Apr 23, 2026
    EPS:Mar 20, 2007
    EPSS Score:0.08006
    CVSS Score:6.8

    Affected Products

    Vendor
    Php
    Product
    Php

    Exploits

    http://www.php-security.org/MOPB/MOPB-23-2007.htmlhttp://www.php-security.org/MOPB/MOPB-23-2007.htmlhttps://www.exploit-db.com/exploits/3480

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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