Multiple vulnerabilities have been reported in Pale Moon, which can be exploited by malicious people to disclose potentially sensitive information, conduct cross-site scripting and phishing attacks, and compromise a user's system.

For more information:
SA50088

The vulnerabilities are reported in versions prior to 15.0

Solution
Upgrade to version 15.0.
Original Advisory
http://www.palemoon.org/releasenotes-ng.shtml

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers