---
cve: "CVE-2026-13377"
severity: "MEDIUM"
cvss: 4.8
epss: "17%"
vendor: "WatchGuard"
kev: false
exploited: false
published: "2026-07-03 00:16:51"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T06:57:28+02:00"
---

# CVE-2026-13377

> 4.8 MEDIUM

## Beschreibung

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS SIP Proxy module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-6947.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Hoch | good |

## Referenzen

- <https://psirt.watchguard.com/CVE-2026-13377>
- <https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00019>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-13377) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_