CVE-2006-7243

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2011-01-18 · updated 2026-06-16
Weakness: CWE-20

Description

PHP before 5.3.4 accepts the \0 character in a pathname, which might allow context-dependent attackers to bypass intended access restrictions by placing a safe file extension after this character, as demonstrated by .php\0.jpg at the end of the argument to the file_exists function.

Affected products

PHP: through 5.3.3; 1.0, 2.0, 2.0b10, 3.0, 3.0.1, 3.0.2 (+100)

References

http://bugs.php.net/39863
http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158616.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158915.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/159031.html
http://marc.info/?l=bugtraq&m=132871655717248&w=2
http://marc.info/?l=bugtraq&m=133469208622507&w=2
http://openwall.com/lists/oss-security/2010/11/18/4
http://openwall.com/lists/oss-security/2010/11/18/5
http://openwall.com/lists/oss-security/2010/12/09/10
http://openwall.com/lists/oss-security/2010/12/09/11
http://openwall.com/lists/oss-security/2010/12/09/9

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