CVE-2026-28413
Products.isurlinportal: Possible open redirect when using more than 2 forward slashes
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-601 |
| Vendor | plone |
| Product | products.isurlinportal |
| Published | Mar 5, 2026 |
| Last Updated | Mar 6, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
plone / Products.isurlinportal
< 4.0.0 < 3.1.0 < 2.1.0