---
cve: "CVE-2023-3521"
severity: "MEDIUM"
cvss: 5.4
epss: "0.9%"
vendor: "fossbilling"
kev: false
exploited: false
published: "2023-07-06 02:15:09"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T05:36:06+02:00"
---

# CVE-2023-3521

> 5.4 MEDIUM · 🧪 PoC

## Beschreibung

Cross-site Scripting (XSS) - Reflected in GitHub repository fossbilling/fossbilling prior to 0.5.4.

## CVSS-Vektor

```
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
```

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

## Patch verfügbar (OSV)

- df136232c5068efbeb7c1e45e0d87570a4d3d475 (Commit)
- 5eb516d4ebcb764db1b2edf9c8d0539e76ebde52 (Commit)

## Referenzen

- <https://huntr.dev/bounties/76a3441d-7f75-4a8d-a7a0-95a7f5456eb0>
- <https://github.com/fossbilling/fossbilling/commit/5eb516d4ebcb764db1b2edf9c8d0539e76ebde52>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-3521) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_