What version of Premiere Elements and what computer operating system is involved? By "upload", do you mean import into a Premiere Elements video project?
Or, it is possible that your program is Photoshop Elements and not Premiere Elements? If that is the case, you have posted in the wrong forum and need to re-post your thread in the Adobe Photoshop Elements Forum.
If this is a Premiere Elements matter involving jpeg import into one of its project....have you edited the photo in Photoshop and applied the CMYK color profile before importing the photo into Premiere Elements project?
Please check out the following and determine if any of it applies to you.
Is the Elements Organizer or just the Premiere Elements Editor or both involved in this matter.
Please consider and give more information.
Without having to go outside the programs support, Photoshop Elements and Premiere Elements references are available to support those photo edits that will not be supported in the Photoshop Elements Editor or Premiere Elements Editor projects. I have suggested one in a prior post in your thread.
The answers will be in the Elements details (program in use and photo properties) that you supply in your reply.