WordPress security changelog
MEDIUM CVE-2009-3622 Modified

wp-trackback.php in WordPress before 2.8.5: A security weakness

wp-trackback.php in WordPress before 2.8.5 is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 4.3 CVSS · secalert@redhat.com
NVD score 4.3 CVSS 2.0 · nvd@nist.gov
Component
wp-trackback.php in WordPress before 2.8.5
Plugin slug
Not applicable
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Oct 23, 2009
Weakness
CWE-310 — Cryptographic Issues
What to do

Update, patch or deactivate.

Update wp-trackback.php in WordPress before 2.8.5 to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

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

References

Primary and upstream sources