CVE-2007-0233: wp-trackback.php in WordPress 2.0.6 and earlier does not properly unset variables when the input data includes a numeric parameter with a value matching an alphanumeric parameter's hash value, which a

high Affects WordPress core. Feed 2026.10.29.3, updated 2026-10-29; published ; advisory modified .

wp-trackback.php in WordPress 2.0.6 and earlier does not properly unset variables when the input data includes a numeric parameter with a value matching an alphanumeric parameter's hash value, which a

Package
WordPress core WordPress
Affected versions
=0.6.2 or =0.6.2.1 or =0.7 or =0.71 or =1.2 or =1.2.1 or =1.2.2 or =1.5 or =1.5.1 or =1.5.1.2 or =1.5.1.3 or =1.5.2 or =2.0 or =2.0.1 or =2.0.2 or =2.0.3 or =2.0.4 or =2.0.5 or =2.0.6
Fixed in
no fix recorded
Severity
high  CVSS 7.5
Exploitation
not on CISA KEV · EPSS 12% (96.1th percentile)
Published
2007-01-13
Source
nvd

References

NVD recordWordPress core advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

# or, without Composer
pipx install phpwarden   &&   phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs   How findings are ranked

Related advisories