---
cve: "CVE-2026-48842"
severity: "HIGH"
cvss: 8.1
epss: "76%"
vendor: "Roundcube"
kev: false
exploited: false
published: "2026-05-25 19:06:37"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T04:56:27+02:00"
---

# CVE-2026-48842

> 8.1 HIGH · 🧪 PoC

## Beschreibung

Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1 has Pre-authentication SQL injection in the virtuser_query plugin via a preg_replace() backslash escape bypass.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- ea1798a6fbf060abcc0ba73b2435036bf8016a5a (Commit)
- d40ec266240f2456a52c24ef2848e18bbfb5c300 (Commit)

## Referenzen

- <https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1>
- <https://github.com/roundcube/roundcubemail/releases/tag/1.7.1>
- <https://github.com/roundcube/roundcubemail/commit/3406183a9976e36f992d3468f37d0e2346526ee9>
- <https://github.com/roundcube/roundcubemail/releases/tag/1.6.16>
- <https://github.com/roundcube/roundcubemail/commit/87124cc7136a48b5fa9d2b40dfead6e9dcaeaf4b>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-48842) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_