Newsletters < 4.16 - Unauthenticated SSRF via SNS Bounce Handler

Newsletters WordPress plugin 4.16 contains a server-side request forgery caused by lack of authentication and validation in bounce-processing requests, letting unauthenticated attackers make arbitrary requests to internal or external hosts. id: CVE-2026-16268 info: name: Newsletters 4.16 -...

CVE-2026-16268

creationtimestamp| type| source ---|---|--- 2026-08-17 06:00:05+00:00| confirmed| https://github.com/projectdiscovery/nuclei-templates/tree/main/http/cves/2026/CVE-2026-16268.yaml 2026-08-18 00:00:03+00:00| confirmed|...

CVE-2026-16268

CVE-2026-16268 affects the WordPress plugin Newsletters prior to version 4.16. The vulnerability arises because the bounce-processing request is not authenticated or validated before fetching a user-supplied URL on the server side, enabling unauthenticated attackers to induce the site to issue re...