Multiple SQL injection vulnerabilities in Jeremy Ashcraft Simplog 0.9.2 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) blogid parameter in (a) index.php and (b) archive.php, the (2) m and (3) y parameters in archive.php, and the (4) sql parameter in (c) server.php.

PHP remote file inclusion vulnerability in doc/index.php in Jeremy Ashcraft Simplog 0.9.2 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the s parameter.

Directory traversal vulnerability in doc/index.php in Jeremy Ashcraft Simplog 0.9.2 and earlier allows remote attackers to include and execute arbitrary local files via directory traversal sequences in the s parameter, as demonstrated by injecting PHP sequences into an Apache errorlog file, which is then included by doc/index.php.

Cross-site scripting (XSS) vulnerability in login.php in Jeremy Ashcraft Simplog 0.9.2 and earlier allows remote attackers to inject arbitrary web script or HTML via the btag parameter.