CVE-2009-3622

MEDIO 4.3CVE-2009-3622 · Published 23/10/2009 · updated 16/06/2026

Package	Affected versions	Patched versions
wordpress wordpress	`≤ 2.8.4`	No fix yet

Description

Algorithmic complexity vulnerability in wp-trackback.php in WordPress before 2.8.5 allows remote attackers to cause a denial of service (CPU consumption and server hang) via a long title parameter in conjunction with a charset parameter composed of many comma-separated "UTF-8" substrings, related to the mb_convert_encoding function in PHP.

References

codes.zerial.org/php/wp-trackbacks_dos.phps · Broken Link
marc.info · Mailing List
marc.info · Mailing List
rooibo.wordpress.com/2009/10/17/agujero-de-seguridad-en-wordpress · Exploit
seclists.org/fulldisclosure/2009/Oct/263 · Exploit
secunia.com/advisories/37088 · Third Party Advisory
security-sh3ll.blogspot.com/2009/10/wordpress-resource-exhaustion-denial-of.html · Third Party Advisory
securitytracker.com/id · Third Party Advisory
wordpress.org/development/2009/10/wordpress-2-8-5-hardening-release · Vendor Advisory
osvdb.org/59077 · Broken Link
vupen.com/english/advisories/2009/2986 · Patch
bugzilla.redhat.com/show_bug.cgi · Issue Tracking
exchange.xforce.ibmcloud.com/vulnerabilities/53884 · Third Party Advisory

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