The current edition of GIMP (version 3.0.2) has a security vulnerability that could be exploited to inject malicious code. The developers released GIMP 3.0 back in March, then followed it up a week ...

When I click on open on a PDF attached file in a mail, it opens GIMP and try to import the PDF in GIMP.

Learn GIMP - you won't regret it. I'm a GIMP expert, and I've got 10 tips for getting productive faster with this great Photoshop alternative.