Cross-site scripting (XSS) vulnerability in Invision Power Board 2.3.1 and earlier allows remote attackers to inject arbitrary web script or HTML via an IFRAME tag in the signature.

Cross-site scripting (XSS) vulnerability in ips_kernel/class_ajax.php in Invision Power Board (IPB or IP.Board) 2.3.1 up to 20070912 allows remote attackers to inject arbitrary web script or HTML into user profile fields via unspecified vectors related to character sets other than iso-8859-1 or utf-8.

ips_kernel/class_upload.php in Invision Power Board (IPB or IP.Board) 2.3.1 up to 20070912 allows remote attackers to upload arbitrary script files with crafted image filenames to uploads/, where they are saved with a .txt extension and are not executable. NOTE: there are limited usage scenarios under which this would be a vulnerability, but it is being tracked by CVE since the vendor has stated it is security-relevant.

Unspecified vulnerability in the subscriptions manager in Invision Power Board (IPB or IP.Board) 2.3.1 before 20070912 allows remote authenticated users to change the member ID and reduce the privilege level of arbitrary users via a crafted payment form, related to (1) class_gw_2checkout.php, (2) class_gw_authorizenet.php, (3) class_gw_nochex.php, (4) class_gw_paypal.php, and (5) class_gw_safshop.php in sources/classes/paymentgateways/.

Cross-site scripting (XSS) vulnerability in forum/admin.php for Invision Power Board (IPB) 2.1.6 and earlier allows remote attackers to inject arbitrary web script or HTML as the administrator via the phpinfo parameter.