# CVE-2026-48842

> 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:** 8.1 (HIGH)
- **EPSS:** 0.1%
- **CWE:** CWE-89

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-48842
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp