CVE-2026-6203 Details.
User Registration & Membership WordPress plugin - Open Redirect
Atlas does not check this one. Needs a scripted sequence.
This check is a series of requests where each step depends on the last, often after logging in. Atlas runs single, read-only probes, so it does not run this one.
About CVE-2026-6203. What It Means.
User Registration & Membership WordPress plugin <= 5.1.4 contains an open redirect caused by insufficient validation of 'redirect_to_on_logout' parameter, letting attackers redirect users to malicious external URLs after logout, exploit requires crafted URL.
Affected Product. What Is Hit.
The record for CVE-2026-6203 does not name a vendor or product yet.
References. Where To Read More.
FAQ
Common Questions.
User Registration & Membership WordPress plugin - Open Redirect. User Registration & Membership WordPress plugin <= 5.1.4 contains an open redirect caused by insufficient validation of 'redirect_to_on_logout' parameter, letting attackers redirect users to malicious external URLs after logout, exploit requires crafted URL.
No. This check is a series of requests where each step depends on the last, often after logging in. Atlas runs single, read-only probes, so it does not run this one. The facts about CVE-2026-6203 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-6203 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update the affected software 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-2026-6203. Atlas does not run a check for it, so nothing here says whether a particular site is affected.