FUDforum v3.1.3 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the chpos parameter at /adm/admsmiley.php.

A stored cross-site scripting (XSS) vulnerability in FUDforum v3.1.3 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the SQL statements field under /adm/admsql.php.

Cross-site scripting (XSS) vulnerability in install/forum_data/src/custom_fields.inc.t in FUDforum 3.0.4.1 and earlier, when registering a new user, allows remote attackers to inject arbitrary web script or HTML via a custom profile field to index.php. NOTE: some of these details are obtained from third party information.

FUDForum 3.1.2 is vulnerable to Cross Site Scripting (XSS) via page_title param in Page Manager in the Admin Control Panel.

FUDforum 3.1.2 is vulnerable to Stored XSS via Forum Name field in Forum Manager Feature.

FUDforum 3.1.2 is vulnerable to Remote Code Execution through Upload File feature of File Administration System in Admin Control Panel.

FUDforum 3.1.1 is vulnerable to Stored XSS.

A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "author" parameter.

A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "srch" parameter.

FUDForum 3.0.9 is vulnerable to Stored XSS via the User-Agent HTTP header. This may result in remote code execution. An attacker can use a user account to fully compromise the system via a GET request. When the admin visits user information under "User Manager" in the control panel, the payload will execute. This will allow for PHP files to be written to the web root, and for code to execute on the remote server. The problem is in admsession.php and admuser.php.

FUDForum 3.0.9 is vulnerable to Stored XSS via the nlogin parameter. This may result in remote code execution. An attacker can use a user account to fully compromise the system using a POST request. When the admin visits the user information, the payload will execute. This will allow for PHP files to be written to the web root, and for code to execute on the remote server.

PHP Code Injection vulnerability in FUDforum Bulletin Board Software 3.0.4 could allow remote attackers to execute arbitrary code on the system.