An SQL Injection vulnerability in Joomla! Core was reported on February 29, 2012 and affects Joomla 2.5.1, 2.5.0, 1.7.4 and all earlier 1.7.x variants.
Users of these versions are strongly urged to upgrade to 2.5.2 immediately.
WordPress Plugin Q and A FAQ and Knowledge Base for WordPress Multiple SQL Injection Vulnerabilities (22.214.171.124)
WordPress Plugin SearchAutocomplete 'tags.php' SQL Injection (1.0.8)
WordPress Plugin WP Email Users SQL Injection (1.4.3)
WordPress Plugin Welcart e-Commerce Multiple SQL Injection Vulnerabilities (1.5.2)