---
cve: "CVE-2026-28413"
severity: "MEDIUM"
cvss: 5.3
epss: "0.2%"
vendor: "plone"
kev: false
exploited: false
published: "2026-03-05 21:16:22"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-24T13:43:16+02:00"
---

# CVE-2026-28413

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 832e84dcb996b58d5e699b23bc36c798f93ecc84 (Commit)
- 062925c0ec96d90a56c3d2654b29654a6cea281e (Commit)

## Referenzen

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

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-28413) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_