CVE-2026-28413 MEDIUM

CVE-2026-28413: Products.isurlinportal: Possible open redirect when using more than 2 forward slashes

Vendor Plone
Product Products.isurlinportal
Weakness CWE-601 · Open redirect
Published March 5, 2026
Last update March 6, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 5, 2026 CVE published
March 6, 2026 Record updated