CVE-2026-28413 Details
Description
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.
An open redirect vulnerability has been identified in the Products.isurlinportal package, which is used as a replacement for the isURLInPortal method in Plone. This vulnerability affects versions prior to 2.1.0, 3.1.0, and 4.0.0. The issue arises when a URL containing multiple forward slashes is used; after logging in, the user may be redirected to an external website. While standard Plone is not affected, customized logins or certain add-ons could introduce this vulnerability.
Users can upgrade to Products.isurlinportal version 4.0.0 for Plone 6.2, version 3.1.0 for Plone 6.1, or version 2.1.0 for Plone 6.0. For older Plone versions, no security support is available.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 6, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/plone/Products.isurlinportal/security/advisories/GHSA-43gx-6gv6-3jcp | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-601 | URL Redirection to Untrusted Site ('Open Redirect') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| plone isurlinportal | < 2.1.0 >= 3.0.0, < 3.1.0 4.0.0 alpha1 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 17, 2026 | Initial Analysis | [email protected] |
| Mar 5, 2026 | New CVE Received | [email protected] |