Hi Polonus and Michael (alan1998)
Thank you both for your input.
Since posting this, Avast! have gotten back in touch with:
I have talked with our virus specialists once again and I receive new information.
The provided website isn't detected by Avast anymore. The results will be visible with next virus definitions update.
We are sorry for the inconvenience. If you have any further questions, don't hesitate to contact me again.I'm not sure what they mean by "detected" but I am assuming that the block is due to be lifted?
Apologies for my ignorance but as I understand your replies - you believe the site has been breached via the tpproductquestion module? Or are these suggestions on how to improve the security?
I'm afraid I have only a passing knowledge of info-sec so please don't assume much knowledge on my behalf
I will certainly take a look at upgrading JQuery and see how invasive this might be.
Also regarding Securi reporting the website was down - that is odd as it's reporting 100% uptime in our dashboard, might this have been a very temporary thing between scans?
Thank you both for your time and expertise.
Alexon