CVE-2009-4448

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-12-29 · updated 2026-06-16
Weakness: CWE-399

Description

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.

Affected products

mybb: 1.4.10

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

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