The YARPP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via className parameter in versions up to, and including, 5.30.3 due to insufficient input sanitization and output escaping. This makes it possible for contributor-level attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Yet_another_related_posts_plugin | Yarpp | * | 5.30.3 (including) |