CVE-2026-28413 — Products.isurlinportal: Possible open redirect when using more than 2 forward slashes
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?came_from=////evil.example may redirect to an …
Published: 2026-03-05 · CVSS: 5.3 · CVSS 3.1
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?came_from=////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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7