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    CVE-2007-1700

    The session extension in PHP 4 before 4.4.5, and PHP 5 before 5.2.1, calculates the reference count for the session variables without considering the internal pointer from the session globals, which allows context-dependent attackers to execute arbitrary code via a crafted string in the session_register after unsetting HTTP_SESSION_VARS and _SESSION, which destroys the session data Hashtable.

    Published:Mar 27, 2007
    Last Modified:Apr 23, 2026
    EPS:Mar 27, 2007
    EPSS Score:0.04355
    CVSS Score:7.5

    Affected Products

    Vendor
    Php
    Product
    Php

    Exploits

    http://www.securityfocus.com/bid/23119http://www.securityfocus.com/bid/23119https://www.exploit-db.com/exploits/3571

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-7263 (CVSS 6.3) — In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, DOMNode::C14N() method may process the XML data in…
    CVE-2026-6104 (CVSS 6.3) — In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, when an encoding name containing an embedded NUL b…
    CVE-2026-7258 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, some fu…
    CVE-2026-6722 (CVSS 9.5) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the SOA…
    CVE-2026-7259 (CVSS 2.1) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, a misma…
    CVE-2026-7261 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when So…
    CVE-2026-7262 (CVSS 2.9) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when a …
    CVE-2025-14179 (CVSS 7.4) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the PDO…
    CVE-2026-7568 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the met…

    References

    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01056506
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01086137
    http://secunia.com/advisories/25056
    http://secunia.com/advisories/25057
    http://secunia.com/advisories/25062
    http://secunia.com/advisories/25423
    http://secunia.com/advisories/25445
    http://secunia.com/advisories/25850
    http://security.gentoo.org/glsa/glsa-200705-19.xml
    http://www.debian.org/security/2007/dsa-1283
    http://www.novell.com/linux/security/advisories/2007_32_php.html
    http://www.php-security.org/MOPB/MOPB-30-2007.html
    http://www.securityfocus.com/bid/23119
    http://www.ubuntu.com/usn/usn-455-1
    http://www.vupen.com/english/advisories/2007/1991
    http://www.vupen.com/english/advisories/2007/2374
    https://exchange.xforce.ibmcloud.com/vulnerabilities/33520
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01056506
    http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01086137
    http://secunia.com/advisories/25056
    http://secunia.com/advisories/25057
    http://secunia.com/advisories/25062
    http://secunia.com/advisories/25423
    http://secunia.com/advisories/25445
    http://secunia.com/advisories/25850
    http://security.gentoo.org/glsa/glsa-200705-19.xml
    http://www.debian.org/security/2007/dsa-1283
    http://www.novell.com/linux/security/advisories/2007_32_php.html
    http://www.php-security.org/MOPB/MOPB-30-2007.html
    http://www.securityfocus.com/bid/23119
    http://www.ubuntu.com/usn/usn-455-1
    http://www.vupen.com/english/advisories/2007/1991
    http://www.vupen.com/english/advisories/2007/2374
    https://exchange.xforce.ibmcloud.com/vulnerabilities/33520

    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