Aquí os pongo un listado con las bases de datos de vulnerabilidades de WordPress

https://wpvulndb.com/

https://web.nvd.nist.gov/view/vuln/search-results?query=wordpress&search_type=all&cves=on

https://www.exploit-db.com/search/?action=search&filter_page=1&filter_description=wordpress&filter_exploit_text=&filter_author=&filter_platform=0&filter_type=0&filter_lang_id=0&filter_port=&filter_osvdb=&filter_cve=

http://www.rapid7.com/db/search?utf8=%E2%9C%93&q=wordpress&t=a

http://secunia.com/community/advisories/search (require registro gratuito)

https://packetstormsecurity.com/search/?q=wordpress

http://wpsecure.net/category/exploits/