Back
CVE-2009-3622
Algorithmic complexity vulnerability in wp-trackback.php in WordPress before 2.8.5 allows remote attackers to cause a denial of service…
Medium4.3EPSS 5.8%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 5.8% · top 6.8% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (13)
- 20091019 [Wordpress] Resource Exhaustion (Denial of Service) (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- http://security-sh3ll.blogspot.com/2009/10/wordpress-resource-exhaustion-denial-of.html (opens in a new tab)x_refsource_MISCx_transferred
- wordpress-wptrackback-dos(53884) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- [oss-security] 20091021 Re: CVE request: Wordpress Trackback DoS (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://codes.zerial.org/php/wp-trackbacks_dos.phps (opens in a new tab)x_refsource_MISCx_transferred
- 37088 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 59077 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- http://rooibo.wordpress.com/2009/10/17/agujero-de-seguridad-en-wordpress/ (opens in a new tab)x_refsource_MISCx_transferred
- ADV-2009-2986 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=530056 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20091021 CVE request: Wordpress Trackback DoS (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 1023072 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://wordpress.org/development/2009/10/wordpress-2-8-5-hardening-release/ (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-3622)Record last updated .