Accessibility issues: Survey slider image is missing alt text, iframe contains empty title

Per WCAG guideline 1.1.1, images need alt text. In my slider creative, I dropped in an image. On the page itself (where the slider is located), it contains no alt text. The image has a description, though, so it just looks like Qualtrics doesn't support alt text in sliders...
Additionally, per WCAG guideline 2.4.1, the iframe for the slider survey requires a non-empty title attribute that identifies the frame. By default, Qualtrics appears to NOT be using a title. Because the slider is inserted into a page / site as a JS snippet, I have no idea how to resolve this accessibility issue.