CVE-2026-28413

Products.isurlinportal is a replacement for isURLInPortal method in Plone. Prior to versions 2.1.0, 3.1.0, and 4.0.0, a url /login?camefrom=////evil.example may redirect to an external website after login. This issue has been patched in versions 2.1.0, 3.1.0, and 4.0.0...

CVE-2026-28413

Products.isurlinportal is a replacement for isURLInPortal method in Plone. Prior to versions 2.1.0, 3.1.0, and 4.0.0, a url /login?camefrom=////evil.example may redirect to an external website after login. This issue has been patched in versions 2.1.0, 3.1.0, and 4.0.0...

CVE-2026-28413

The CVE affects Plone via the Products.isurlinportal replacement. Before versions 2.1.0, 3.1.0, and 4.0.0, a login redirect can be manipulated when the came_from parameter contains more than two forward slashes (e.g., /login?came_from=////evil.example), leading to an open redirect. The issue has ...