Cross-site scripting (XSS) vulnerability in eFiction 1.0 and 1.1 allows remote attackers to inject arbitrary web script or HTML via the let parameter in a viewlist action to titles.php.

Multiple SQL injection vulnerabilities in eFiction 1.0, 1.1, and 2.0 allow remote attackers to execute arbitrary SQL commands via (1) the let parameter in a viewlist action to titles.php and (2) the username.

Multiple SQL injection vulnerabilities in eFiction 1.0 allow remote attackers to execute arbitrary SQL commands via the (1) let parameter in a viewlist action to authors.php and (2) sid parameter to viewstory.php.

SQL injection vulnerability in eFiction 1.1 allows remote attackers to execute arbitrary SQL commands via the uid parameter to viewuser.php.

The "Upload new image" command in the "Manage Images" eFiction 1.1, when members are allowed to upload images, allows remote attackers to execute arbitrary PHP code by uploading a filename with a .php extension that contains a GIF header, which passes the image validity check but executes any PHP code within the file.

eFiction 1.0, 1.1, and 2.0 allows remote attackers to obtain sensitive information via a direct request to storyblock.php without arguments, which leaks the full pathname in the resulting PHP error message.

eFiction 1.0, 1.1, and 2.0 allows remote attackers to obtain sensitive information by accessing phpinfo.php, which executes the PHP phpinfo function.

eFiction 1.0, 1.1, and 2.0, in unspecified environments, might allow remote attackers to conduct unauthorized operations by directly accessing (1) install.php or (2) upgrade.php. NOTE: it is unclear whether this is a vulnerability in eFiction itself or the result of incorrect system administration practices, e.g. by not removing utility scripts once they have been used.