The Newsletters WordPress plugin before 4.15 does not prevent deserialization of untrusted input that is stored through a public form, allowing unauthenticated attackers to inject a PHP object and, via a property-oriented gadget chain bundled with the Newsletters WordPress plugin before 4.15, write arbitrary files and execute code on the server.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Newsletters Lite Plugin | — | Update newsletters-lite plugin to version 4.15, or a newer patched version | Jul 30, 2026 | Jun 23, 2026 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub