high8.1
CVE-2026-12583
The Newsletters WordPress plugin before 4.15 does not prevent deserialization of untrusted input that is stored through a public form, allowing unauthenticated…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| Newsletters WordPress Plugin | before 4.15 |
Versions were read from the advisory text. No structured product data has been published for this record yet.