The Word Balloon WordPress plugin before 4.19.3 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Word_balloon | Back2nature | * | 4.19.3 (excluding) |