CVE-2026-28413
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Lifecycle Timeline
3Description
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.
Analysis
Products.isurlinportal is a replacement for isURLInPortal method in Plone. versions up to 2.1.0 is affected by url redirection to untrusted site (open redirect) (CVSS 5.3).
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Remediation
Within 30 days: Identify affected systems running Plone. and apply vendor patches as part of regular patch cycle. …
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External POC / Exploit Code
Leaving vuln.today
GHSA-43gx-6gv6-3jcp