high8.1
CVE-2026-16267
The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submission, allowing una…
Impact
The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submission, allowing unauthenticated attackers to inject arbitrary PHP objects.
Affected products
| Product | Affected versions |
|---|---|
| Newsletters WordPress Plugin | before 4.16 |
Versions were read from the advisory text. No structured product data has been published for this record yet.