Multiple cross-site scripting (XSS) vulnerabilities in Photo Album 2.0.53 module for phpBB allow remote attackers to inject arbitrary web script or HTML via the bsid parameter to (1) album_cat.php or (2) album_comment.php.

Meilad File upload script (up.php) mod for phpBB 2.0.x does not properly limit the types of files that can be uploaded, which allows remote authenticated users to execute arbitrary commands by uploading PHP files, then directly requesting them from the uploads directory.

Directory traversal vulnerability in (1) usercp_register.php and (2) usercp_avatar.php for phpBB 2.0.11, and possibly other versions, with gallery avatars enabled, allows remote attackers to delete (unlink) arbitrary files via "/../" sequences in the avatarselect parameter.

phpBB 2.0.11, and possibly other versions, with remote avatars and avatar uploading enabled, allows local users to read arbitrary files by providing both a local and remote location for an avatar, then modifying the "Upload Avatar from a URL:" field to reference the target file.

viewtopic.php in phpBB 2.0.12 and earlier allows remote attackers to obtain sensitive information via a highlight parameter containing invalid regular expression syntax, which reveals the path in a PHP error message.

Cross-site scripting (XSS) vulnerability in phpBB 2.0.6d and earlier allows remote attackers to inject arbitrary web script or HTML via the (1) postdays parameter to viewtopic.php or (2) topicdays parameter to viewforum.php.

PHP remote file inclusion vulnerability in admin_cash.php for the Cash Mod module for phpBB allows remote attackers to execute arbitrary PHP code by modifying the phpbb_root_path parameter to reference a URL on a remote web server that contains the code.

SQL injection vulnerability in search.php for phpBB 1.0 through 2.0.6 allows remote attackers to execute arbitrary SQL and gain privileges via the search_results parameter.

CRLF injection vulnerability in PhpBB 2.0.4 and 2.0.9 allows remote attackers to perform HTTP Response Splitting attacks to modify expected HTML content from the server via (1) the mode parameter to privmsg.php or (2) the redirect parameter to login.php.

Cross-site scripting (XSS) vulnerability in ViewTopic.php in phpBB, possibly 2.0.6c and earlier, allows remote attackers to execute arbitrary script or HTML as other users via the postorder parameter.