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

CVE-2026-28413

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

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
plone / Products.isurlinportal	affected < 4.0.0; affected < 3.1.0; affected < 2.1.0

CWE

CWE-601

References

https://github.com/plone/Products.isurlinportal/security/advisories/GHSA-43gx-6gv6-3jcp

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.