CVE-2026-28413CWE-601

Products.isurlinportal: Possible open redirect when using more than 2 forward slashes

Medium · published March 5, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
19.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00277 · 19.1th percentile
Weakness
CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
Published
2026-03-05T20:16Z
EPSS history
Timeline
  • 05 MAR 20:16Z
    Products.isurlinportal: Possible open redirect when using more than 2 forward slashes
    cvelistv5