PDF researcher Didier Stevens has just found out a security vulnerability that it is possible to execute arbitrary code out of PDF files. This means an executable can be embedded in a PDF and get it to be run once the document is opened. Some PDF readers e.g. Adobe reader and Nuance's free PDF reader will show a warning dialog but when opened but NOT for popular Foxit Reader.
This is worrying.
Malicious PDFs Own Foxit; Adobe At Least Warns [via]
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