damage to the timeline so that comment fields cannot be displayed or not available to all members in the store

How it was found

see https://a-alert-b-y000-b-finda.myshopify.com/admin/discounts/416981811222

I tried to make a discount code with a product name and a discount code like: ± <img src = x onerror = alert (1)> ±

when I havehtag (#) the product name on the timeline (comment) and I get a "server error" reply and it causes crashes to the timeline, so comments are automatically inactive or non-existent.

This can be done by members who want to destroy the shop, so that all members of the shop feel the impact.

step for reproduction

1. create a product name and discount code using a payload like: ± <img src = x onerror = alert (1)> ±
2. Product name hashtags in the timeline
3. The comment field cannot be displayed

Impact

The comment field cannot be displayed