CVE-2009-3622

Name: CVE-2009-3622
Creator: NVD / NIST
Published: 2009-10-23T18:30:00.517+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 5.83%

Last modified Jun 16, 2026

CVE-2009-3622 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 5.83% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

5.83%

92.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-310

Affected Software

Vendor	Product	Versions
Wordpress	Wordpress	<= 2.8.4

References

http://codes.zerial.org/php/wp-trackbacks_dos.phpsBroken Link
http://marc.info/?l=oss-security&m=125612393329041&w=2Mailing List, Third Party Advisory
http://marc.info/?l=oss-security&m=125614592004825&w=2Mailing List, Third Party Advisory
http://rooibo.wordpress.com/2009/10/17/agujero-de-seguridad-en-wordpress/Exploit, Issue Tracking, Vendor Advisory
http://seclists.org/fulldisclosure/2009/Oct/263Exploit, Mailing List, Third Party Advisory
http://secunia.com/advisories/37088Third Party Advisory
http://security-sh3ll.blogspot.com/2009/10/wordpress-resource-exhaustion-denial-of.htmlThird Party Advisory
http://securitytracker.com/id?1023072Third Party Advisory, VDB Entry
http://wordpress.org/development/2009/10/wordpress-2-8-5-hardening-release/Vendor Advisory
http://www.osvdb.org/59077Broken Link
http://www.vupen.com/english/advisories/2009/2986Patch, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=530056Issue Tracking
https://exchange.xforce.ibmcloud.com/vulnerabilities/53884Third Party Advisory, VDB Entry
http://codes.zerial.org/php/wp-trackbacks_dos.phpsBroken Link
http://marc.info/?l=oss-security&m=125612393329041&w=2Mailing List, Third Party Advisory
http://marc.info/?l=oss-security&m=125614592004825&w=2Mailing List, Third Party Advisory
http://rooibo.wordpress.com/2009/10/17/agujero-de-seguridad-en-wordpress/Exploit, Issue Tracking, Vendor Advisory
http://seclists.org/fulldisclosure/2009/Oct/263Exploit, Mailing List, Third Party Advisory
http://secunia.com/advisories/37088Third Party Advisory
http://security-sh3ll.blogspot.com/2009/10/wordpress-resource-exhaustion-denial-of.htmlThird Party Advisory
http://securitytracker.com/id?1023072Third Party Advisory, VDB Entry
http://wordpress.org/development/2009/10/wordpress-2-8-5-hardening-release/Vendor Advisory
http://www.osvdb.org/59077Broken Link
http://www.vupen.com/english/advisories/2009/2986Patch, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=530056Issue Tracking
https://exchange.xforce.ibmcloud.com/vulnerabilities/53884Third Party Advisory, VDB Entry

Timeline

Published: Oct 23, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-3622?

How severe is CVE-2009-3622?

Severity scoring for CVE-2009-3622 is pending analysis. The EPSS model estimates a 5.83% probability of exploitation in the next 30 days.

How do I fix CVE-2009-3622?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-3622?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST