CVE-2009-3622 json
Algorithmic complexity vulnerability in wp-trackback.php in WordPress before 2.8.5 allows remote attackers to cause a denial of service (CP…
published 2009-10-23 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-3603
- cvss
- 4.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.8%
- EPSS 5.8% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- wordpress Debian 14, Debian 13, Debian 12 2.8.5-1
debian advisories DEBIAN-CVE-2009-3622
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2009-3622 updated cvss 2.1
WordPress: Resource exhaustion (DoS)
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
5.83% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- seclists.org http://seclists.org/fulldisclosure/2009/Oct/263 referenced PoC, tagged "exploit" by a source, unverified
- rooibo.wordpress.com http://rooibo.wordpress.com/2009/10/17/agujero-de-seguridad-en-wordpress/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-310 Cryptographic Issues
- Technology feeds
References
-
vupen.com
/english/advisories/2009/2986
vdb-entry, patch, vendor-advisory
-
seclists.org
/fulldisclosure/2009/Oct/263
mailing-list, exploit, third-party-advisory
-
rooibo.wordpress.com
/2009/10/17/agujero-de-seguridad-en-wordpress/
exploit, issue-tracking, vendor-advisory
-
wordpress.org
/development/2009/10/wordpress-2-8-5-hardening-release/
vendor-advisory
-
security-sh3ll.blogspot.com
/2009/10/wordpress-resource-exhaustion-denial-of.html
third-party-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/53884
vdb-entry, third-party-advisory
-
marc.info
/?l=oss-security&m=125614592004825&w=2
mailing-list, third-party-advisory
-
codes.zerial.org
/php/wp-trackbacks_dos.phps
broken-link
-
secunia.com
/advisories/37088
third-party-advisory
-
osvdb.org
/59077
vdb-entry, broken-link
-
bugzilla.redhat.com
/show_bug.cgi?id=530056
issue-tracking
-
marc.info
/?l=oss-security&m=125612393329041&w=2
mailing-list, third-party-advisory
-
securitytracker.com
/id?1023072
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2009-3622
- NVD CVE-2009-3622
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.