# CVE-2026-48843

> Roundcube Webmail 1.6.x between 1.6.14 and 1.6.16,and 1.7.x before 1.7.1 has Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts. The issue stems from an insufficient fix for CVE-2026-35540.

- **CVSS:** 7.2 (HIGH)
- **EPSS:** 0.0%
- **CWE:** CWE-918

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-48843
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp
