SQL injection vulnerability in wp-includes/query.php in WordPress 2.3.1 and earlier allows remote attackers to execute arbitrary SQL commands via the s parameter, when DB_CHARSET is set to (1) Big5, (2) GBK, or possibly other character set encodings that support a "" in a multibyte character.

References

• https://nvd.nist.gov/vuln/detail/CVE-2007-6318
• https://exchange.xforce.ibmcloud.com/vulnerabilities/38959
• https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00079.html
• https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00098.html
• http://lists.grok.org.uk/pipermail/full-disclosure/2007-December/058999.html
• http://secunia.com/advisories/28005
• http://secunia.com/advisories/28310
• http://securityreason.com/securityalert/3433
• http://www.abelcheung.org/advisory/20071210-wordpress-charset.txt
• http://www.securityfocus.com/archive/1/484828/100/0/threaded
• http://www.securityfocus.com/bid/26795
• http://www.securitytracker.com/id?1019071
• http://www.vupen.com/english/advisories/2007/4172