---
cve: "CVE-2026-45572"
severity: "MEDIUM"
cvss: 4.8
epss: "18%"
vendor: "decidim"
kev: false
exploited: false
published: "2026-08-06 22:17:07"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-15T08:44:05+02:00"
---

# CVE-2026-45572

> 4.8 MEDIUM · 🧪 PoC

## Beschreibung

Decidim is a participatory democracy framework. Prior to 0.30.9, from 0.31.0 before 0.31.5, and in 0.32.0.rc1 before 0.32.0.rc2, an administrator with landing-page editing privileges can store arbitrary HTML and JavaScript in an HTML content block, which Decidim::ContentBlocks::HtmlCell#html_content renders without sanitization, causing the script to execute in visitors' browsers. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 03d80881ac459127f0e11999c8a733cf78e78736 (Commit)
- 867174012910ba4f5f020a27444d47309fd19122 (Commit)

## Referenzen

- <https://github.com/decidim/decidim/security/advisories/GHSA-533c-2vh9-4r86>
- <https://github.com/decidim/decidim/pull/16451>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-45572) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_