CVE-2026-16268 Details.
Newsletters < 4.16 - Unauthenticated SSRF via SNS Bounce Handler
Atlas does not check this one. Needs an outside server.
To test for this one, the site would have to contact a server outside your network and report back. Atlas does not run checks that need that, so it does not run this one.
About CVE-2026-16268. What It Means.
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.
Affected Product. What Is Hit.
- Vendor
- newsletters-lite
- Product
- Newsletters Lite
References. Where To Read More.
FAQ
Common Questions.
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.
No. To test for this one, the site would have to contact a server outside your network and report back. Atlas does not run checks that need that, so it does not run this one. The facts about CVE-2026-16268 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-16268 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update Newsletters Lite to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-16268. Atlas does not run a check for it, so nothing here says whether a particular site is affected.