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CVE-2009-3622

16
FAUCET Score

CVE-2009-3622 is an algorithmic complexity vulnerability affecting WordPress versions prior to 2.8.5, specifically within the wp-trackback.php component. This flaw allows remote attackers to trigger a denial of service by supplying a crafted title and charset parameter, leading to excessive CPU consumption and server instability. With a CVSS score of 4.3 (AV:N/AC:M/Au:N/C:N/I:N/A:P), it represents a medium-complexity attack that can result in partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.8.4CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.83%
Probability of exploitation in next 30 days
EPSS Percentile
92.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0583 is in the 91st percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2009-3622Low

WordPress: Resource exhaustion (DoS)

Oct 20, 2009

References

codes.zerial.org / php/wp-trackbacks_dos.phps
Broken Link
marc.info
Mailing ListThird Party Advisory
marc.info
Mailing ListThird Party Advisory
rooibo.wordpress.com / 2009/10/17/agujero-de-seguridad-en-wordpress
ExploitIssue TrackingVendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue Tracking
seclists.org / fulldisclosure/2009/Oct/263
ExploitMailing ListThird Party Advisory
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 AdvisoryVDB Entry
exchange.xforce.ibmcloud.com / vulnerabilities/53884
Third Party AdvisoryVDB Entry
wordpress.org / development/2009/10/wordpress-2-8-5-hardening-release
Vendor Advisory
osvdb.org / 59077
Broken Link
vupen.com / english/advisories/2009/2986
PatchVendor Advisory