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The TikTok plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.4.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to overwrite the merchant's stored TikTok integration access token in wp_options, hijacking the site's TikTok Business and product catalog integration. Successful exploitation requires the attacker to supply a valid TikTok OAuth auth_code issued for the merchant's registered TikTok app, as the plugin's token exchange must receive a message='OK' response from TikTok's API before the stored access token is overwritten.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Tiktok For Business Plugin | — | Update tiktok-for-business plugin to version 1.4.2, or a newer patched version | Oct 30, 2026 | Sep 18, 2026 |
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