Cross-site request forgery (CSRF) vulnerability in Serendipity 0.8.4 and earlier allows remote attackers to perform unauthorized actions as a logged in user via a link or IMG tag to serendipity_admin.php.
SQL injection vulnerability in exit.php for Serendipity 0.8 and earlier allows remote attackers to execute arbitrary SQL commands via the (1) url_id or (2) entry_id parameters.
Cross-site scripting (XSS) vulnerability in compat.php in Serendipity before 0.7.1 allows remote attackers to inject arbitrary web script or HTML via the searchTerm variable.
CRLF injection vulnerability in Serendipity before 0.7rc1 allows remote attackers to perform HTTP Response Splitting attacks to modify expected HTML content from the server via the url parameter in (1) index.php and (2) exit.php, or (3) the HTTP Referer field in comment.php.