The EnvíaloSimple: Email Marketing y Newsletters plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.3. This is due to missing or incorrect nonce validation on the gallery_add function. This makes it possible for unauthenticated attackers to upload malicious files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. The Cross-Site Request Forgery was patched in 2.4, however, nothing was done about the ability to upload arbitrary files.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Envialosimple Email Marketing Y Newsletters Gratis Plugin | — | Update envialosimple-email-marketing-y-newsletters-gratis plugin to version 2.4, or a newer patched version | May 15, 2025 | Apr 1, 2024 |
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