Unspecified vulnerability in the rating section in PostNuke 0.764 has unknown impact and attack vectors, related to "an interesting bug."
The faq section in PostNuke 0.764 allows remote attackers to obtain sensitive information (the full path) via "unvalidated output" in FAQ/index.php, possibly involving an undefined idcat variable.
Cross-site scripting (XSS) vulnerability in preview in the reviews section in PostNuke 0.764 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.