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    CVE-2009-4448

    inc/functions_time.php in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier versions, allows remote attackers to cause a denial of service (CPU consumption) via a crafted request with a large year value, which triggers a long loop, as reachable through member.php and possibly other vectors.

    Published:Dec 29, 2009
    Last Modified:Apr 23, 2026
    EPS:Dec 29, 2009
    EPSS Score:0.01238
    CVSS Score:5

    Affected Products

    Vendor
    Mybb
    Product
    Mybb

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-45118 (CVSS 9.3) — MyBB is free and open source forum software. Prior to 1.8.40, the Contact module does not validate a redirect …
    CVE-2026-45117 (CVSS 9.8) — MyBB is free and open source forum software. From 1.8.13 until 1.8.40, the installer module does not properly …
    CVE-2026-45129 (CVSS 4.6) — MyBB is free and open source forum software. Prior to 1.8.40, the Admin CP Recovery Codes module does not vali…
    CVE-2026-45124 (CVSS 4.3) — MyBB is free and open source forum software. Prior to 1.8.40, the Mod CP Report Center does not check permissi…
    CVE-2026-45120 (CVSS 5.4) — MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not verify private even…
    CVE-2026-47245 (CVSS 4.3) — MyBB is free and open source forum software. Prior to 1.8.40, the User CP Buddy/Ignore List component does not…
    CVE-2026-45734 (CVSS 5.3) — MyBB is free and open source forum software. Prior to 1.8.40, the built-in CAPTCHA does not consistently enfor…
    CVE-2026-45125 (CVSS 5.3) — MyBB is free and open source forum software. Prior to 1.8.40, the Email User controller does not sanitize send…
    CVE-2026-45122 (CVSS 4.3) — MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not validate moderation…
    CVE-2026-45119 (CVSS 4.6) — MyBB is free and open source forum software. Prior to 1.8.40, the Admin CP UTF-8 Conversion module does not va…

    References

    http://blog.mybboard.net/2009/12/29/mybb-1-4-11-released-minor-patch-security-update/
    http://dev.mybboard.net/issues/600
    http://dev.mybboard.net/projects/mybb/repository/revisions/4613/diff/branches/1.4-stable/inc/functions_time.php
    http://openwall.com/lists/oss-security/2010/10/08/7
    http://openwall.com/lists/oss-security/2010/10/11/8
    http://openwall.com/lists/oss-security/2010/12/06/2
    http://secunia.com/advisories/37906
    http://blog.mybboard.net/2009/12/29/mybb-1-4-11-released-minor-patch-security-update/
    http://dev.mybboard.net/issues/600
    http://dev.mybboard.net/projects/mybb/repository/revisions/4613/diff/branches/1.4-stable/inc/functions_time.php
    http://openwall.com/lists/oss-security/2010/10/08/7
    http://openwall.com/lists/oss-security/2010/10/11/8
    http://openwall.com/lists/oss-security/2010/12/06/2
    http://secunia.com/advisories/37906

    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