Since April 2020 any pdf I upload to media manager has extra characters added – for example I uploaded a file called The Contented Journey.pdf but it is showing in the media manager as The-Contented-Journey-zwesek.pdf.
I have looked at other pdfs, images and audio files I have uploaded and they all have their original up until April 2020 – after that all pdfs uploaded have these random characters added, but images and audio files are unaffected.
I am concerned that the addition to the pdf filenames is some sort of malicious code, which concerns me because they are available for users to download. I can’t find any threads on wordpress or anywhere else online that sheds any light on this odd behaviour – if there is anyone out there who can tell why this is happening and how I can avoid it, I would be very grateful.